deps: update dependency com.google.cloud:google-cloud-shared-dependen…

…cies to v0.19.0 (#377)

* deps: update dependency com.google.cloud:google-cloud-shared-dependencies to v0.19.0

* deps: declare dependency on google-auth-library

It's used directly only in test, but with the flatten-maven-plugin, we
need to explicitly declare it or our transitive dependency of it will be
filtered out.

Co-authored-by: Jeff Ching <chingor@google.com>

google-cloud-websecurityscanner/pom.xml

@@ -85,7 +85,6 @@
     <dependency>
       <groupId>com.google.auth</groupId>
       <artifactId>google-auth-library-oauth2-http</artifactId>
-      <scope>test</scope>
     </dependency>
 
     <dependency>

pom.xml

@@ -106,7 +106,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-shared-dependencies</artifactId>
-        <version>0.18.0</version>
+        <version>0.19.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>