specs: Skip the 'check' (test) phase when `BUILDER_SKIP_CHECKS` is set #170

	---
	name: 'Run tests'

	on:
	push:
	pull_request:
	# Disabled, because Github appears to disable the whole workflow if you have a schedule
	# and no updates for 60 days...
	# schedule:
	#- cron: '0 7 * * *'

	jobs:
	tests:
	name: Run tests
	# on a ubuntu-20.04 VM
	runs-on: ubuntu-20.04
	defaults:
	run:
	working-directory: ./demo/
	steps:
	- uses: actions/[email protected]
	with:
	fetch-depth: 5
	submodules: recursive
	- run: ./test-templating.sh
	working-directory: ./templating
	- run: ./tests/test_versioning.sh
	working-directory: .
	- run: ./prepare.sh
	- run: ./builder/build.sh -B MYCOOLARG=iLikeTests sdist
	- run: ./builder/build.sh -B MYCOOLARG=iLikeTests centos-7
	# Again, now very fast due to the layer cache
	- run: ./builder/build.sh -B MYCOOLARG=iLikeTests centos-7
	# Three cache builds:
	# - First one will write the vendor cache
	- run: ./builder/build.sh -c -B MYCOOLARG=iLikeTests centos-7
	# - Second one will use the vendor cache, but the Docker layer cache gets invalidated by the new cache file
	- run: ./builder/build.sh -c -B MYCOOLARG=iLikeTests centos-7
	# - Third one is very fast due to the Docker layer cache
	- run: ./builder/build.sh -c -B MYCOOLARG=iLikeTests centos-7
	# Do a reproducible rocky-8 build (does not work for centos-7)
	- run: ../tests/test-rocky-8-reproducible.sh
	- run: ../tests/test-rocky-9-reproducible.sh

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