Update Release Drafter and CodeQL workflows: add release notes template and Java 21 setup

.github/workflows/codeql.yml

@@ -21,6 +21,13 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 21
+          cache: gradle
+
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v3
         with: