Uplift gradle and java versions for build

.github/workflows/build.yaml

@@ -47,7 +47,7 @@ jobs:
       - name: Setup JDK 
         uses: actions/setup-java@v4
         with:
-          java-version: '11'
+          java-version: '17'
           distribution: 'semeru'
 
       # The githash is added to the development Maven registry to show what commit level it contains
@@ -58,7 +58,7 @@ jobs:
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v3
         with:
-          gradle-version: 6.9.2
+          gradle-version: 8.9
 
       - name: Build Gradle source code
         if: github.event_name == 'push'

.github/workflows/pr-build.yaml

@@ -20,7 +20,7 @@ jobs:
       - name: Setup JDK 
         uses: actions/setup-java@v4
         with:
-          java-version: '11'
+          java-version: '17'
           distribution: 'semeru'
 
       # The githash is added to the development Maven registry to show what commit level it contains
@@ -31,7 +31,7 @@ jobs:
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v3
         with:
-          gradle-version: 6.9.2
+          gradle-version: 8.9
 
       - name: Build Gradle source code
         run: |