add volatile.email domain #193

	name: Dedupe and Sort Domains
	on:
	push:
	branches:
	- master
	pull_request:
	permissions: write-all
	jobs:
	dedupe:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0
	ref: ${{github.event.pull_request.head.ref}}
	repository: ${{github.event.pull_request.head.repo.full_name}}
	- name: Check for duplicates and sort alphabetically
	run: grep -v '^$' emails.txt \| sort -uo emails.txt
	- name: Commit Changes
	run: \|
	git add emails.txt
	git config --local user.email "action@github.com"
	git config --local user.name "GitHub Action"
	# commit only if any changes
	if [ ! -z "$(git status --porcelain)" ]; then
	git commit -m "[chore]: Sort and dedupe \`emails.txt\`"
	git push
	fi
	# - name: Push changes
	# uses: ad-m/github-push-action@master
	# with:
	# github_token: ${{ secrets.GITHUB_TOKEN }}
	# branch: ${{ github.ref }}

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