feat: allow git remote urls from non-scm sources

[caarlos0]

basically allows to use goreleaser against a repo with a git url without both owner and repo name.

closes #3060
closes #3058

[codecov]

Codecov Report

Merging #3088 (40b31ae) into main (e290270) will increase coverage by 0.10%.
The diff coverage is 81.25%.

@@            Coverage Diff             @@
##             main    #3088      +/-   ##
==========================================
+ Coverage   84.29%   84.39%   +0.10%     
==========================================
  Files         112      112              
  Lines        9250     9285      +35     
==========================================
+ Hits         7797     7836      +39     
+ Misses       1178     1176       -2     
+ Partials      275      273       -2     

Impacted Files	Coverage Δ
internal/pipe/changelog/changelog.go	90.87% <0.00%> (+0.21%)	⬆️
internal/git/config.go	90.56% <82.35%> (-2.30%)	⬇️
internal/pipe/milestone/milestone.go	83.63% <100.00%> (+0.61%)	⬆️
internal/pipe/release/release.go	92.77% <100.00%> (+4.23%)	⬆️
pkg/config/config.go	88.83% <100.00%> (+0.39%)	⬆️

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[quenbyako]

By looking on code, that's exactly what i want, thank you so much! I'll check it on next workday, is it works for us, thaks a lot!

[quenbyako]

@caarlos0 You rock!!! 🤘🤘🤘🤘 Thank you so much, it's working as expected, +1 company which uses goreleaser 🥳🎉

[chadgrant]

configuration is invalid: unsupported repository URL: ***github.com//xxxx/yyy currently getting double slashes in github actions