feat(ci): add 'typos' check #661

Job	Run time
Test fixtures (test-ignore-tags)	3m 35s
Test fixtures (test-topo-order, --latest)	5m 15s
Test fixtures (test-date-order, --latest)	3m 31s
Test fixtures (test-topo-order-arg, --latest --topo-order)	3m 26s
Test fixtures (test-latest-with-one-tag, --latest)	3m 38s
Test fixtures (test-commit-footers)	4m 40s
Test fixtures (test-commit-preprocessors)	4m 36s
Test fixtures (test-custom-scope)	4m 28s
Test fixtures (test-limit-commits)	4m 24s
Test fixtures (test-skip-breaking-changes)	3m 41s
Test fixtures (test-split-commits)	3m 23s
Test fixtures (test-keep-a-changelog-links)	4m 12s
	48m 49s

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