updated workflows

.github/workflows/build.yml

@@ -33,6 +33,7 @@ jobs:
       - name: build
         run: ./gradlew build
       - name: capture build artifacts
+        if: ${{ runner.os == 'Linux' && matrix.java == '21' }} # Only upload artifacts built from latest java on one OS
         uses: actions/upload-artifact@v4
         with:
             name: Artifacts