minor: update java-version up to 21 for Qodana

Author: vldF

.github/workflows/build.yml

@@ -125,7 +125,7 @@ jobs:
           uses: actions/setup-java@v4
           with:
             distribution: zulu
-            java-version: 17
+            java-version: 21
 
         # Run Qodana inspections
         - name: Qodana - Code Inspection