build

Add support for `.gitlab-ci.yaml` files #1571

Job	Run time
'mypy' on py3.x	31s
'twine-check' on py3.x	23s
ensure-catalog-matches-hook-config	21s
Self-Check	17s
'py-mindeps' on py3.9	33s
test-sdist	1m 56s
Test on ubuntu, py3.11	1m 18s
Test on ubuntu, py3.13	1m 20s
Test on windows, py3.10	1m 14s
Test on macos, py3.10	1m 21s
Test on macos, py3.9	1m 20s
Test on windows, py3.12	1m 14s
Test on macos, py3.12	1m 25s
Test on macos, py3.13	1m 19s
Test on windows, py3.11	1m 13s
Test on windows, py3.9	1m 15s
Test on macos, py3.11	58s
Test on windows, py3.13	1m 8s
Test on ubuntu, py3.12	1m 20s
Test on ubuntu, py3.9	1m 19s
Test on ubuntu, py3.10	1m 0s
Collate results to check for skipped tests	0s
	22m 45s

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