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This commit will fix bad version tag sort if there is a prerelease on
the same commit as a release tag. Current output is shown below
```
❯ git tag --points-at HEAD --sort=-version:refname --format='%(creatordate)%09%(refname)'
Thu Mar 2 21:38:51 2023 +0300 refs/tags/v1.13.0-rc3
Thu Mar 2 21:38:51 2023 +0300 refs/tags/v1.13.0
```
Test is changed to match current default value so it will fail without
this fix.
Default value `-` is set to the one that is described inside
[docs](https://goreleaser.com/how-it-works/?h=prerelease#how-it-works),
but people are still allowed to change it.
Output with fix applied
```
❯ git -c versionsort.suffix=- tag --points-at HEAD --sort -version:refname --format='%(creatordate)%09%(refname)'
Thu Mar 2 21:38:51 2023 +0300 refs/tags/v1.13.0
Thu Mar 2 21:38:51 2023 +0300 refs/tags/v1.13.0-rc3
```
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More info about `versionsort.suffix` can be found
[here](https://github.com/git/git/blob/master/Documentation/config/versionsort.txt#L5)
Docs as well both schemas are updated as well.
I am not sure if users should be allowed to change this option at all.
