OPS: Changed copyright action to only check the Yoko files in the PR

.github/workflows/gradle.yml

@@ -23,15 +23,20 @@ jobs:
         distribution: 'adopt'
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew
-    - name: Check for correct copyright in all Yoko files
+    - name: Get changed yoko files
+      id: changed-files
+      uses: tj-actions/changed-files@v37
+      with:
+        files: yoko*/
+        files_ignore: yoko*/**/*generated*/**
+    - name: Check for correct copyright in changed Yoko files
       run: |
-        SRC=$(find yoko*/ -name '*.java')
         RC=0
         echo "Checking copyright in Yoko src files..."
-        for filePath in $SRC; do
+        for filePath in ${{ steps.changed-files.outputs.all_changed_files }}; do
           author=$(git log -1 --format="%an" $path)
           if [[ $author != *"Alan"* ]]; then
-            if grep -Eq "Copyright ([[:digit:]]{4}?) IBM Corporation and " $filePath; then
+            if grep -Eq "Copyright ([[:digit:]]{4}?) IBM Corporation and | Licensed under the Apache License, Version 2\.0" $filePath; then
               echo "✅ Copyright OK: $filePath"
             else
               echo "❌ Copyright not found in $filePath"