[TESTS] add snakeyaml + toolchains integration test

[bmarwell]

• Needs a toolchain in github workflows

Will throw this exception on current HEAD and any released version:

[ERROR] Failed to execute goal org.moditect:moditect-maven-plugin:1.2.0-SNAPSHOT:add-module-info (add-module-info-to-dependencies) on project moditect-integrationtest-snakeyaml: Execution add-module-info-to-dependencies of goal org.moditect:moditect-maven-plugin:1.2.0-SNAPSHOT:add-module-info failed.: NullPointerException -> [Help 1]org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.moditect:moditect-maven-plugin:1.2.0-SNAPSHOT:add-module-info (add-module-info-to-dependencies) on project moditect-integrationtest-snakeyaml: Execution add-module-info-to-dependencies of goal org.moditect:moditect-maven-plugin:1.2.0-SNAPSHOT:add-module-info failed.
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:333)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:316)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:212)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:174)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:75)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:162)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:159)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at io.takari.maven.builder.smart.SmartBuilderImpl.buildProject (SmartBuilderImpl.java:209)
    at io.takari.maven.builder.smart.SmartBuilderImpl$ProjectBuildTask.run (SmartBuilderImpl.java:81)
    at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:515)
    at java.util.concurrent.FutureTask.run (FutureTask.java:264)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1128)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:628)
    at java.lang.Thread.run (Thread.java:866)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution add-module-info-to-dependencies of goal org.moditect:moditect-maven-plugin:1.2.0-SNAPSHOT:add-module-info failed.
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:133)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:328)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:316)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:212)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:174)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:75)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:162)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:159)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at io.takari.maven.builder.smart.SmartBuilderImpl.buildProject (SmartBuilderImpl.java:209)
    at io.takari.maven.builder.smart.SmartBuilderImpl$ProjectBuildTask.run (SmartBuilderImpl.java:81)
    at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:515)
    at java.util.concurrent.FutureTask.run (FutureTask.java:264)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1128)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:628)
    at java.lang.Thread.run (Thread.java:866)
Caused by: java.lang.NullPointerException
    at java.util.Objects.requireNonNull (Objects.java:221)
    at org.apache.maven.project.SnapshotModelCache.<init> (SnapshotModelCache.java:32)
    at org.apache.maven.project.SnapshotModelCacheFactory.createCache (SnapshotModelCacheFactory.java:57)
    at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom (DefaultArtifactDescriptorReader.java:269)
    at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor (DefaultArtifactDescriptorReader.java:175)
    at org.eclipse.aether.internal.impl.collect.DependencyCollectorDelegate.collectDependencies (DependencyCollectorDelegate.java:179)
    at org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.collectDependencies (DefaultDependencyCollector.java:87)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.collectDependencies (DefaultRepositorySystem.java:306)
    at org.moditect.mavenplugin.util.ArtifactResolutionHelper.getCompilationDependencies (ArtifactResolutionHelper.java:96)
    at org.moditect.mavenplugin.generate.ModuleInfoGenerator.getDependencies (ModuleInfoGenerator.java:169)
    at org.moditect.mavenplugin.generate.ModuleInfoGenerator.generateModuleInfo (ModuleInfoGenerator.java:85)
    at org.moditect.mavenplugin.add.AddModuleInfoMojo.getModuleInfoSource (AddModuleInfoMojo.java:372)
    at org.moditect.mavenplugin.add.AddModuleInfoMojo.execute (AddModuleInfoMojo.java:190)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:126)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:328)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:316)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:212)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:174)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:75)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:162)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:159)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at io.takari.maven.builder.smart.SmartBuilderImpl.buildProject (SmartBuilderImpl.java:209)
    at io.takari.maven.builder.smart.SmartBuilderImpl$ProjectBuildTask.run (SmartBuilderImpl.java:81)
    at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:515)
    at java.util.concurrent.FutureTask.run (FutureTask.java:264)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1128)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:628)
    at java.lang.Thread.run (Thread.java:866)
[ERROR] 
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <args> -r