[To dev/1.3] Use JDK 21 for Sonar CI

Author: HTHou

.github/workflows/sonar-codecov.yml

@@ -64,11 +64,11 @@ jobs:
     if: github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == 'apache/iotdb' || github.event_name == 'push'
     steps:
       - uses: actions/checkout@v4
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
           distribution: corretto
-          java-version: 17
+          java-version: 21
       - name: Cache Maven packages
         uses: actions/cache@v4
         with: