build: Switch to ubuntu-latest for builds (#43) #24

	# Every time commits are pushed to master, this workflow
	# merges those commits into nightly. The idea is that commits
	# against the plugin's stable branch (master) should always
	# be reflected on its bleeding-edge branch (nightly) as well.
	#
	# If there is a merge commit, it is associated with
	# "github-actions[bot]", which is not a real user account.
	#
	# Assumptions:
	# * The default branch is master, not main.
	# * GitHub Actions have been given access to read & write repository
	# contents (from repository settings).
	# * Write access is sufficient for pushing to nightly. Requiring
	# PRs for nightly would break this workflow.

	name: Merge master into nightly

	on:
	push:
	branches: [ master ]

	jobs:
	merge-to-nightly:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 0 # all branches and tags
	- name: Merge
	run: \|
	git checkout nightly
	git config user.name 'github-actions[bot]'
	git config user.email 'github-actions[bot]@users.noreply.github.com'
	git merge master
	- name: Push
	run: \|
	git remote set-url origin https://x-access-token:${{ github.token }}@github.com/${{ github.repository }}
	git push origin nightly

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