Update meta keys to reflect recent WDS meta key migration. #1

	on:
	pull_request:
	branches:
	- dev
	types: [closed]

	jobs:
	update_changelog:
	name: Update and Commit Changelog
	runs-on: ubuntu-latest
	if: github.event.pull_request.merged == true && startsWith( github.event.pull_request.title, '[' )
	steps:
	# Checkout git.
	- uses: actions/checkout@v2
	with:
	ref: dev # checkout dev branch.
	fetch-depth: 0 # fetch all history.

	- run: git config --global user.email "[email protected]"
	- run: git config --global user.name "Iconibot"

	- name: Create Changelog Entry String
	run: \|
	import json
	import os
	with open('${{ github.event_path }}') as fh:
	event = json.load(fh)
	escaped = event['pull_request']['title']
	with open(os.environ['GITHUB_ENV'], 'a') as fh:
	print(f'PR_TITLE={escaped}', file=fh)
	shell: python3 {0}

	# Update changelog.
	- run: \|
	printf "%b" "$PR_TITLE \n" >> changelog-dev.md

	# Commit changes.
	- run: git add changelog-dev.md
	- run: git commit -m "Update Changelog" \|\| echo "No changes to commit"
	- run: git push origin dev

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