Bump actions/cache from 3 to 4 #229

	# Copyright 2020 Allan Feldman
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	name: auto-merge
	on: pull_request_target
	jobs:
	dependabot:
	if: github.event.pull_request.user.login == 'dependabot[bot]'
	runs-on: ubuntu-latest
	permissions:
	pull-requests: write
	contents: write
	steps:
	- name: auto-merge Dependabot PRs
	run: \|
	gh pr merge --auto --rebase "$PR_URL"
	gh pr review --approve "$PR_URL"
	env:
	PR_URL: ${{github.event.pull_request.html_url}}
	GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}

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