Query-Frontend: Add middleware to drop headers #3125

	# This checks merged PRs for labels like "backport release-x.y"
	# and opens a new PR backporting the same commit to the release branch.
	# This workflow also runs when the PR is labeled or opened, but will
	# will only check a few things and detect that the PR is not yet merged.
	# At this time only squashed PRs are supported since the cherry-pick
	# command does not include "-m <n>" arg required for merge commits.
	name: Backport
	on:
	pull_request_target:
	types:
	- closed
	- labeled

	jobs:
	main:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Actions
	uses: actions/checkout@v4
	with:
	repository: "grafana/grafana-github-actions"
	path: ./actions
	ref: main

	- name: Install Actions
	run: npm install --production --prefix ./actions

	- name: Run backport
	uses: ./actions/backport
	with:
	token: ${{secrets.GITHUB_TOKEN}}
	labelsToAdd: "backport"
	title: "[{{base}}] {{originalTitle}}"

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