build

Add a regression test for localtime handling #1514

Job	Run time
test-sdist	2m 14s
'mypy' on py3.x	25s
'twine-check' on py3.x	23s
Self-Check	13s
'py-mindeps' on py3.9	33s
ensure-catalog-matches-hook-config	23s
Test on ubuntu, py3.12	1m 41s
Test on ubuntu, py3.13	2m 20s
Test on windows, py3.9	2m 33s
Test on ubuntu, py3.11	1m 41s
Test on macos, py3.9	1m 31s
Test on ubuntu, py3.10	1m 42s
Test on ubuntu, py3.9	1m 42s
Test on windows, py3.10	2m 30s
Test on windows, py3.12	2m 59s
Test on windows, py3.11	3m 1s
Test on windows, py3.13	3m 32s
Test on macos, py3.10	1m 22s
Test on macos, py3.12	1m 6s
Test on macos, py3.11	1m 15s
Test on macos, py3.13	1m 21s
Collate results to check for skipped tests	5s
	34m 32s

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