[Dependencies]: Bump bbeesley/gha-auto-dependabot-rebase from 1.5.49 to 1.5.53 #73

	--- # Cleanup on PR Close
	name: "PR: Closed"
	on:
	pull_request:
	types:
	- closed

	jobs:
	cleanup-cache:
	runs-on: [self-hosted, linux, build]
	steps:
	- name: "Initialise Workspace"
	if: startsWith(runner.name, 'buildagent-')
	shell: bash
	run: sudo chown -R "$USER:$USER" "$GITHUB_WORKSPACE"

	- name: "Install extensions"
	run: gh extension install actions/gh-actions-cache
	env:
	GH_TOKEN: ${{ secrets.SOURCE_PUSH_TOKEN }}

	- name: "Cleanup"
	run: \|
	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
	echo "Deleting cache key: $cacheKey"
	gh actions-cache delete "$cacheKey" -R "$REPO" -B "$BRANCH" --confirm
	done
	echo "Done"
	env:
	GH_TOKEN: ${{ secrets.SOURCE_PUSH_TOKEN }}
	REPO: ${{ github.repository }}
	BRANCH: refs/pull/${{ github.event.pull_request.number }}/merge

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