fix(mutator): pin version of @types/diff-match-patch #26859

	name: Test

	on: [push]

	jobs:
	test:
	name: Test (${{ matrix.os }} / node ${{ matrix.node }})
	runs-on: ${{ matrix.os }}
	continue-on-error: ${{ matrix.experimental }}

	strategy:
	matrix:
	os: [ubuntu-latest]
	node: [12, 14, 16]
	experimental: [false]
	include:
	- os: windows-latest
	node: 16
	experimental: true

	steps:
	- name: Checkout
	uses: actions/checkout@v2

	- name: Cache node modules
	uses: actions/cache@v2
	env:
	# added -vX just to reset the cache, feel free to up it if you need
	# to reset the cache again
	cache-name: cache-node-modules-v4
	with:
	path: ~/.npm
	key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
	restore-keys: \|
	${{ runner.os }}-build-${{ env.cache-name }}-

	- name: Install npm dependencies
	env:
	CYPRESS_INSTALL_BINARY: '0'
	run: npm install

	- name: Test individual modules
	run: npx jest && lerna run --scope groq --scope '@sanity/{client,plugin-loader}' test

	- name: Build modules
	run: npm run build

	- name: Build CLI
	run: \|
	# Build CLI to a single file
	cd packages/@sanity/cli
	npm run pack

	- name: Test CLI
	working-directory: ${{ env.GITHUB_WORKSPACE }}
	run: \|
	node scripts/testCli.js

	- name: Notify Slack about build failure
	if: failure() && github.ref == 'refs/heads/ui/main'
	env:
	SLACK_BOT_TOKEN: ${{ secrets.ACTIONS_SLACK_BOT_TOKEN }}
	uses: voxmedia/github-action-slack-notify-build@v1
	with:
	channel: studio-internal
	status: FAILED
	color: danger

Provide feedback