Build go-git variants for windows (#15482)
Build go-git variants for windows (#15482)

It appears that there are significant performance problems with the pure git backend
on windows.

Therefore until we can sort this out - provide go-git backend builds.

Signed-off-by: Andrew Thornton <6a547fdd28db89120bdd70d4af1f9ba672ccd43a@cantab.net>

Co-authored-by: techknowlogick <274271a2414b6bd0d2eb0401dd4ff6e85d7016a7@gitea.io>
go-gitea/gitea,vdbt/gitea,cez81/gitea,go-gitea/gitea,cez81/gitea,cez81/gitea,vdbt/gitea,go-gitea/gitea