[ci] run coverage on Windows as well #5594

Job	Run time
Test archives with a target runner	2m 16s
Build and test (ubuntu-latest, 1.81)	5m 7s
Lint (ubuntu-latest)	27s
Build and test (ubuntu-latest, stable)	3m 19s
Build documentation (ubuntu-latest)	1m 6s
Lint (windows-latest)	1m 39s
Build and test (macos-14, 1.81)	3m 34s
Build and test (macos-14, stable)	2m 28s
Build and test (windows-latest, 1.81)	8m 31s
Build and test (windows-latest, stable)	6m 40s
Test archives with a runner (destination) (ubuntu-24.04, ubuntu-latest)	11s
Test archives with a runner (destination) (windows-latest, windows-latest)	20s
	35m 38s

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