the latest version of Gradle (8.7) does not support Java 22.

Caused by: java.lang.IllegalArgumentException: Unsupported class file major version 66

(similar to https://stackoverflow.com/questions/67079327/how-can-i-fix-unsupported-class-file-major-version-60-in-intellij-idea)
version 66 = java  22

.github/workflows/android.yml

@@ -14,10 +14,10 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: set up JDK 22
+      - name: set up JDK 21
         uses: actions/setup-java@v4
         with:
-          java-version: '22'
+          java-version: '21'
           distribution: 'temurin'
           cache: gradle