Merge pull request #5 from io7m/dependabot/maven/develop/ch.qos.logba…

…ck-logback-classic-1.5.6

Bump ch.qos.logback:logback-classic from 1.5.3 to 1.5.6

pom.xml

@@ -106,7 +106,7 @@
       <dependency>
         <groupId>ch.qos.logback</groupId>
         <artifactId>logback-classic</artifactId>
-        <version>1.5.3</version>
+        <version>1.5.6</version>
       </dependency>
       <dependency>
         <groupId>com.io7m.jdeferthrow</groupId>