Align GRAALVM version

Author: barchetta

.github/actions/common/action.yml

@@ -85,7 +85,7 @@ runs:
       if: ${{ inputs.native-image == 'true' }}
       uses: graalvm/[email protected]
       with:
-        java-version: ${{ env.JAVA_VERSION }}
+        java-version: ${{ env.GRAALVM_JAVA_VERSION }}
         version: ${{ env.GRAALVM_VERSION }}
         components: 'native-image'
         check-for-updates: 'false'

.github/workflows/validate.yml

@@ -31,6 +31,7 @@ on:
 env:
   JAVA_VERSION: 17.0.12
   JAVA_DISTRO: oracle
+  GRAALVM_JAVA_VERSION: 21
   GRAALVM_VERSION: 21.3.3.1
   MVN_ARGS: |
     -B -fae -e