add description of PM role to contributing doc #3

	name: APIDiff

	# Trigger the workflow on pull requests and direct pushes to any branch
	on:
	push:
	pull_request:

	jobs:
	go-apidiff:
	name: Verify API differences
	runs-on: ubuntu-latest
	# Pull requests from different repository only trigger this checks
	if: (github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name != github.repository)
	steps:
	- name: Clone the code
	uses: actions/checkout@v3
	with:
	fetch-depth: 0
	- name: Setup Go
	uses: actions/setup-go@v4
	with:
	go-version-file: go.work
	- name: Execute go-apidiff
	uses: joelanford/go-apidiff@v0.6.0
	with:
	compare-imports: true
	print-compatible: true
	- name: Report failure
	uses: nashmaniac/create-issue-action@v1.1
	# Only report failures of pushes (PRs have are visible through the Checks section) to the default branch
	if: failure() && github.event_name == 'push' && github.ref == 'refs/heads/master'
	with:
	title: 🐛 go-apidiff failed for ${{ github.sha }}
	token: ${{ secrets.GITHUB_TOKEN }}
	labels: kind/bug
	body: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}

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