Add handling of `.skip_lint` file(s) #216

Job	Run time
Setup as in PR for workflows (3.11)	1m 24s
Setup as in PR for workflows (3.11)	1m 24s
Setup as in CI for workflows (3.11)	4m 10s
Setup as in CI for workflows (3.11)	4m 10s
Test linting of workflows (3.11)	42s
Test linting of workflows (3.11)	42s
Test testing of workflows (0, 3.11)	7m 30s
Test testing of workflows (0, 3.11)	7m 24s
Test testing of workflows (1, 3.11)	6m 42s
Test testing of workflows (1, 3.11)	7m 25s
Test combining 'chunked' test results	0s
Test combining 'chunked' test results (3.11)	35s
	42m 8s

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