Use JetBrains JDK 21 for Play release

- Match the Play Release workflow JDK with the Gradle daemon JVM requirements
- Avoid Foojay toolchain download failures during signed AAB builds
- Keep release workflow aligned with the checked-in daemon JVM configuration

🤖 Auto-generated

Author: OwenMcGirr

.github/workflows/play-release.yml

@@ -54,11 +54,11 @@ jobs:
 
           echo "play_tracks=internal,production" >> "$GITHUB_OUTPUT"
 
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v5
         with:
-          distribution: temurin
-          java-version: '17'
+          distribution: jetbrains
+          java-version: '21'
 
       - name: Set up Gradle
         uses: gradle/actions/setup-gradle@v6