On CI, do not fetch tags in packaging scripts. For some reason, the
checkout action seems to locally update any new git tags on the runner:
t [tag update] (commit-hash) -> tag-name
This causes future calls to fetch git tags to fail on CI with:
! [rejected] tag-name -> tag-name (would clobber existing tag)
To avoid this, we can simply not fetch tags a second time on CI.
Additionally, fix the Windows Installer job.
d39d5f3712