Updated Apache Airflow Prometheus dashboard #317

	name: Validate dashboard templates and metadata

	# Controls when the workflow will run
	on:
	# Triggers the workflow on push or pull request events but only for the "main" branch
	push:
	branches: [ "master" ]
	paths: ["dashboards/**"]
	pull_request:
	branches: [ "master" ]
	paths: ["dashboards/**"]

	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "build"
	build:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v3

	- name: Get changed files
	id: changed-files
	uses: tj-actions/changed-files@v25

	- name: checkout repo content
	uses: actions/checkout@v2 # checkout the repository content to github runner.

	- name: setup python
	uses: actions/setup-python@v2
	with:
	python-version: 3.8 #install the python needed

	- name: Install dependencies
	run: \|
	pip3 install pyyaml
	pip install --upgrade google-cloud-monitoring

	- name: execute py script # run file
	run: \|

	echo "running validation on following files ${{ steps.changed-files.outputs.added_files }}"
	python3 scripts/dashboard/validate_dashboards_format.py ${{ steps.changed-files.outputs.added_files }}

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