docs: akka CLI docs #25

	# https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#force-deleting-cache-entries
	name: Cleanup workflow caches by a branch
	on:
	pull_request:
	types:
	- closed

	permissions:
	actions: write

	jobs:
	cleanup:
	runs-on: ubuntu-latest
	steps:
	- name: Cleanup
	run: \|
	echo "Fetching list of cache key"
	cacheKeysForPR=$(gh cache list --ref $BRANCH \| cut -f 2 )

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

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