This should allow us to then do both 32 and 64 bit Windows builds in our CI/CD
and of course for our releases.
In order to still be able to use this container in a GitHub action, aggressively
remove things that we won't need during the build. Since we use the experimental
-squash argument during docker build, this should get us a much smaller container
image in the end.
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
03e2d1e045