Provide json file dependency for user feature

[jjiwooLim]

fixes #667
Instead of creating a new instance of gradle, use the file dependency configuration from prepareFeature task

[jjiwooLim]

Restored gradle.yml to use ci.common main branch

[cherylking]

@jjiwooLim Please do not merge this until you resolve the compilation error:

/home/runner/work/ci.gradle/ci.gradle/src/main/groovy/io/openliberty/tools/gradle/tasks/AbstractPrepareTask.groovy: 89: Method 'provideJsonFileDependency' from class 'io.openliberty.tools.gradle.tasks.AbstractPrepareTask$PrepareFeatureTaskUtil' does not override method from its superclass or interfaces but is annotated with @Override.
 @ line 89, column 3.
   		@Override

[jjiwooLim]

@jjiwooLim Please do not merge this until you resolve the compilation error:

/home/runner/work/ci.gradle/ci.gradle/src/main/groovy/io/openliberty/tools/gradle/tasks/AbstractPrepareTask.groovy: 89: Method 'provideJsonFileDependency' from class 'io.openliberty.tools.gradle.tasks.AbstractPrepareTask$PrepareFeatureTaskUtil' does not override method from its superclass or interfaces but is annotated with @Override.
 @ line 89, column 3.
   		@Override

After merging ci.common PR, the compilation errors were resolved.