actions: try to simplify gam/gampath logic #920

	name: Check for Google Root CA Updates

	on:
	push:
	pull_request:
	schedule:
	- cron: '23 23 * * *'

	defaults:
	run:
	shell: bash
	working-directory: src

	jobs:
	check-apis:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@master
	with:
	persist-credentials: false # otherwise, the token used is the GITHUB_TOKEN, instead of your personal token
	fetch-depth: 0 # otherwise, you will failed to push refs to dest repo

	- name: Check for updates
	run: curl -o ./cacerts.pem -vvvv https://pki.goog/roots.pem

	- name: Commit file
	run: \|
	git config --local user.email "action@github.com"
	git config --local user.name "GitHub Action"
	git add cacerts.pem
	git diff --quiet && git diff --staged --quiet \|\| git commit -am '[ci skip] Updated cacerts.pem'

	- name: Push changes
	uses: ad-m/github-push-action@master
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}

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