ci: remove obsolete cancel job, use concurrency group names from V CI #336

	name: Docs CI

	### Run on EVERY commit. The documentation SHOULD stay valid, and
	### the developers should receive early warning if they break it.
	on: [push, pull_request]

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref == 'refs/heads/master' && github.sha \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	check-markdown:
	runs-on: ubuntu-latest
	timeout-minutes: 5
	env:
	VFLAGS: -cc tcc
	steps:
	- name: Checkout V
	uses: actions/checkout@v4
	with:
	repository: vlang/v

	- name: Build local v
	run: make -j4 && sudo ./v symlink

	- name: Checkout vab
	uses: actions/checkout@v4
	with:
	path: vab

	- name: Symlink as module
	run: sudo ln -s $(pwd)/vab ~/.vmodules/vab # Workaround for doing `mv vab ~/.vmodules`

	- name: Check markdown line length & code examples
	run: v check-md -hide-warnings vab
	## NB: -hide-warnings is used here, so that the output is less noisy,
	## thus real errors are easier to spot.

	report-missing-fn-doc:
	runs-on: ubuntu-latest
	timeout-minutes: 5
	env:
	MOPTIONS: --relative-paths --exclude /tests/
	steps:
	- name: Checkout V
	uses: actions/checkout@v4
	with:
	repository: vlang/v

	- name: Build local v
	run: make -j4 && sudo ./v symlink

	- name: Checkout vab
	uses: actions/checkout@v4
	with:
	path: vab

	- name: Checkout previous vab
	uses: actions/checkout@v4
	with:
	repository: vlang/vab
	ref: master
	path: pvab

	- name: Check against parent commit
	run: v missdoc --diff $MOPTIONS pvab vab

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