feat: increase the number of block headers able to be downloaded at once to 8000 in protocol version `70235` #5337

	name: Check Merge Fast-Forward Only

	permissions:
	pull-requests: write

	on:
	push:
	pull_request_target:
	pull_request_review:
	types: [submitted]

	jobs:
	check_merge:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v3
	with:
	fetch-depth: 0

	- name: Set up Git
	run: \|
	git config user.name "GitHub Action"
	git config user.email "[email protected]"

	- name: Check merge --ff-only
	run: \|
	git fetch origin master:master
	git checkout master
	if [ "${{ github.event_name }}" == "pull_request" ]; then
	git merge --ff-only ${{ github.event.pull_request.head.sha }}
	else
	git merge --ff-only ${{ github.sha }}
	fi

	- name: add labels
	uses: actions-ecosystem/action-add-labels@v1
	if: failure()
	with:
	labels: \|
	needs rebase

	- name: comment
	uses: mshick/add-pr-comment@v2
	if: failure()
	with:
	message: \|
	This pull request has conflicts, please rebase.

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