fix: typescript errors in 4.0 (#27402) #4

	name: WebSocket server
	on:
	push:
	branches:
	- "master"
	- "[0-9].[0-9]"
	paths:
	- "superset-websocket/**"
	pull_request:
	paths:
	- "superset-websocket/**"
	types: [synchronize, opened, reopened, ready_for_review]

	# cancel previous workflow jobs for PRs
	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.run_id }}
	cancel-in-progress: true

	jobs:
	app-checks:
	runs-on: ubuntu-20.04
	steps:
	- name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
	uses: actions/checkout@v4
	with:
	persist-credentials: false
	- name: Install dependencies
	working-directory: ./superset-websocket
	run: npm ci
	- name: eslint
	working-directory: ./superset-websocket
	run: npm run eslint -- . --quiet
	- name: typescript checks
	working-directory: ./superset-websocket
	run: npm run type
	- name: prettier
	working-directory: ./superset-websocket
	run: npm run prettier-check
	- name: unit tests
	working-directory: ./superset-websocket
	run: npm run test
	- name: build
	working-directory: ./superset-websocket
	run: npm run build

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