[build] Fix branch name in Github action #13

	name: Build and Publish cloudprober-serverutils

	on:
	push:
	branches:
	- master
	pull_request:
	paths:
	- "probes/external/serverutils/py/**"
	- ".github/workflows/py_serverutils.yml"

	jobs:
	test_and_build:
	name: Build serverutils python package
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v2
	with:
	fetch-depth: 0

	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: 3.x

	- name: Test using venv
	run: \|
	python -m venv venv
	source venv/bin/activate
	pip install -e probes/external/serverutils/py/
	pip install pytest
	pytest probes/external/serverutils/py/tests
	deactivate
	rm -rf venv

	- name: Build using pypa/build
	run: make py_serverutils

	- name: Store the distribution packages
	uses: actions/upload-artifact@v3
	with:
	name: python-package-distributions
	path: probes/external/serverutils/py/dist/

	publish-to-pypi:
	name: Publish to PyPI
	needs:
	- test_and_build
	runs-on: ubuntu-latest
	permissions:
	id-token: write
	if: github.repository == 'cloudprober/cloudprober' && (github.ref == 'refs/heads/master' \|\| startsWith(github.ref, 'refs/tags/v'))

	steps:
	- name: Check out repo hosting code
	uses: actions/checkout@v3
	with:
	fetch-depth: 0

	- uses: dorny/paths-filter@v2
	id: filter
	with:
	filters: \|
	py:
	- '*/.py'
	- '!*/test_.py'
	- '**/py_serverutils.yml'

	- name: Download all the dists
	uses: actions/download-artifact@v3
	if: steps.filter.outputs.py == 'true'
	with:
	name: python-package-distributions
	path: dist/

	- name: Publish to PyPI
	uses: pypa/gh-action-pypi-publish@release/v1
	if: steps.filter.outputs.py == 'true'

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