update hugo build in github actions

Signed-off-by: Attila Mészáros <[email protected]>

Author: csviri

.github/workflows/hugo.yaml

@@ -45,6 +45,16 @@ jobs:
         with:
           submodules: recursive
           fetch-depth: 0
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+          cache: maven
+      - name: Build test-index-processor and generate test documentation
+        run: |
+          ./mvnw clean install -DskipTests -pl test-index-processor
+          ./mvnw process-test-classes -DskipTests -pl operator-framework
       - name: Setup Pages
         id: pages
         uses: actions/configure-pages@v5