Fix mvn build in docs.sh and use proper JDK17 img

Author: ferenc-csaky

.github/workflows/docs.sh

@@ -18,7 +18,7 @@
 ################################################################################
 set -e
 
-export JAVA_HOME=$JAVA_HOME_11_X64
+export JAVA_HOME=$JAVA_HOME_17_X64
 
 # setup hugo
 HUGO_REPO=https://github.com/gohugoio/hugo/releases/download/v0.104.0/hugo_extended_0.104.0_Linux-64bit.tar.gz
@@ -28,6 +28,7 @@ if ! curl --fail -OL $HUGO_REPO ; then
 	exit 1
 fi
 tar -zxvf $HUGO_ARTIFACT
+git config --global --add safe.directory '*'
 git submodule update --init --recursive
 # generate docs into docs/target
 ./hugo -v --source docs --destination target

.github/workflows/docs.yaml

@@ -49,7 +49,11 @@ jobs:
           fi
       - name: Build documentation
         run: |
-          docker run  --rm --volume "$PWD:/root/flink-kubernetes-operator" chesnay/flink-ci:java_8_11 bash -c "cd /root/flink-kubernetes-operator && ./.github/workflows/docs.sh"
+          docker run --rm \
+            --workdir /workdir \
+            -v "$PWD:/workdir" \
+            chesnay/flink-ci:java_8_11_17_21_maven_386_jammy \
+            bash -c './.github/workflows/docs.sh'
       - name: Upload documentation
         uses: ./.github/actions/rsync-deployments
         with: