Update JDK to 21 for build setup

Author: lcacheux

.github/workflows/build.yml

@@ -13,11 +13,11 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
-          java-version: 17
-          distribution: 'zulu' # Alternative distribution options are available
+          distribution: 'zulu'
+          java-version: 21
       - name: Cache SonarQube packages
         uses: actions/cache@v4
         with: