Bump alphastats from 0.1.1 to 0.6.3

Bumps [alphastats](https://github.com/MannLabs/alphastats) from 0.1.1 to 0.6.3.
- [Release notes](https://github.com/MannLabs/alphastats/releases)
- [Changelog](https://github.com/MannLabs/alphapeptstats/blob/main/HISTORY.md)
- [Commits](v0.1.1...alphastats_0.6.3)

---
updated-dependencies:
- dependency-name: alphastats
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

docs/requirements_docs.txt

@@ -1,4 +1,4 @@
-alphastats==0.1.1 
+alphastats==0.6.3 
 altair==5.0.1 
 anndata==0.9.1 
 attrs==22.1.0