Add background task to collect Cockroach zone node IDs #3340

	name: validate-openapi-spec
	on:
	pull_request:
	paths:
	- .github/workflows/validate-openapi-spec.yml
	- openapi/*
	workflow_dispatch:
	inputs:
	jobs:
	format:
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
	with:
	ref: ${{ github.event.pull_request.head.sha }} # see omicron#4461
	- uses: actions/setup-node@60edb5dd545a775178f52524783378180af0d1f8 # v4.0.2
	with:
	node-version: '18'
	- name: Install our tools
	shell: bash
	run: \|
	npm install -g @apidevtools/swagger-cli
	- name: Run validation
	shell: bash
	run: \|
	for spec in openapi/*.json; do
	swagger-cli validate $spec \|\| exit
	done

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