Don't filter on java changes (#6717)

PRs and pushes to master previously only run integration tests when the
change includes java files. However, non-java file changes can influence
behavior, such as dependency updates or customization config changes.

Author: dagnir

.github/workflows/codebuild-ci-integration-tests.yml

@@ -1,14 +1,10 @@
 name: AWS CodeBuild CI Integration Tests
 on:
   pull_request:
-    paths:
-      - '**/*.java'
   merge_group:
   push:
     branches:
       - master
-    paths:
-      - '**/*.java'
 
 permissions:
   id-token: write