Change Maven <packaging> to "pom" to avoid unnecessary artifacts

This prevents Maven from producing unused JAR or WAR files during the build.
However, we now need to check in the target directories manually, as they are no longer created automatically before warbling.

Author: tillsc

.gitignore

@@ -3,7 +3,8 @@ pkg
 doc
 .bundle
 nbproject
-target
+**/target/*
+!**/target/.keep
 Gemfile.lock
 .idea
 warbler.iml

integration/rails7_test/pom.xml

@@ -9,7 +9,7 @@
   </parent>
 
   <artifactId>rails7_test</artifactId>
-  <packaging>jar</packaging>
+  <packaging>pom</packaging>
 
   <name>rails7_test</name>
 

integration/rails7_test/target/.keep

@@ -9,7 +9,7 @@
   </parent>
 
   <artifactId>runnable_test</artifactId>
-  <packaging>jar</packaging>
+  <packaging>pom</packaging>
 
   <name>runnable_test</name>
 

integration/runnable_test/pom.xml

@@ -9,7 +9,7 @@
   </parent>
 
   <artifactId>runnable_w_bundler_test</artifactId>
-  <packaging>jar</packaging>
+  <packaging>pom</packaging>
 
   <name>runnable_w_bundler_test</name>
 

integration/runnable_test/target/.keep

@@ -9,7 +9,7 @@
   </parent>
 
   <artifactId>simple_rack_test</artifactId>
-  <packaging>jar</packaging>
+  <packaging>pom</packaging>
 
   <name>simple_rack_test</name>