add windows CI #1550

Job	Run time
Build Documentation	26s
Build and Lint	2m 19s
Run tests on arm64	49s
Run tests on previous stable Go	1m 58s
Run tests (Linux) (mainline)	1m 21s
Run tests (Windows) (main)	2m 39s
Run tests (Linux) (stable)	1m 12s
Run tests (Linux) (6.6)	1m 11s
Run tests (Linux) (6.1)	1m 19s
Run tests (Linux) (5.15)	1m 34s
Run tests (Linux) (5.10)	1m 27s
Run tests (Linux) (5.4)	1m 52s
Run tests (Linux) (4.19)	1m 21s
Run tests (Linux) (4.14)	1m 10s
Run tests (Linux) (4.9)	1m 19s
	21m 57s

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