ACS-3844 POC env vars in composite actions

.github/actions/setup-build-tools/action.yml

@@ -29,5 +29,5 @@ runs:
     - name: "Set up Java"
       uses: actions/setup-java@v3
       with:
-        java-version: ${{ inputs.java-version }}
+        java-version: ${{ env.JAVA_VERSION }} #${{ inputs.java-version }}
         distribution: ${{ inputs.java-distribution }}

.github/workflows/ci.yml

@@ -21,6 +21,7 @@ env:
   # Release version has to start with real version (7.4.0-....) for the docker image to build successfully.
   RELEASE_VERSION: 7.4.0-A3
   DEVELOPMENT_VERSION: 7.4.0-A4-SNAPSHOT
+  JAVA_VERSION: "18"
 
 jobs:
   configure_env: