CB-5386 fix npe #132

	name: Cleanup checks

	on:
	pull_request:
	types: [closed]

	jobs:
	delete-caches:
	runs-on: ubuntu-latest
	steps:
	- name: Cleanup
	run: \|
	gh extension install actions/gh-actions-cache

	echo "Fetching list of cache key"
	cacheKeysForPR=$(gh actions-cache list -R $REPO -B $BRANCH -L 100 \| cut -f 1 )

	## Setting this to not fail the workflow while deleting cache keys.
	set +e
	echo "Deleting caches..."
	for cacheKey in $cacheKeysForPR
	do
	gh actions-cache delete $cacheKey -R $REPO -B $BRANCH --confirm
	done
	echo "Done"
	env:
	GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	REPO: ${{ github.repository }}
	BRANCH: refs/pull/${{ github.event.pull_request.number }}/merge

	# delete-docker-image:
	# name: Delete Docker Image
	# if: github.event.pull_request.merged == true
	# runs-on: ubuntu-latest

	# steps:
	# - name: Check out the repository
	# uses: actions/checkout@v4

	# - name: Set up Docker Buildx
	# uses: docker/setup-buildx-action@v3

	# - name: Determine Docker Image Tag
	# run: \|
	# REPO_NAME=$(basename ${{ github.repository }})
	# IMAGE_NAME=ghcr.io/${{ github.repository_owner }}/$REPO_NAME
	# BRANCH_NAME=${{ github.event.pull_request.head.ref }}
	# TAG_NAME=$(echo $BRANCH_NAME \| sed 's/[^a-zA-Z0-9._-]/-/g')
	# echo "image=$IMAGE_NAME:$TAG_NAME" >> $GITHUB_ENV

	# - name: Log in to GitHub Container Registry
	# run: echo "${{ secrets.GITHUB_TOKEN }}" \| docker login ghcr.io -u ${{ github.repository_owner }} --password-stdin

	# - name: Delete Docker Image
	# run: \|
	# docker rmi ${{ env.image }}
	# echo "Deleted image: ${{ env.image }}"

Provide feedback