Bump keyring from 25.5.0 to 25.6.0

Bumps [keyring](https://github.com/jaraco/keyring) from 25.5.0 to 25.6.0.
- [Release notes](https://github.com/jaraco/keyring/releases)
- [Changelog](https://github.com/jaraco/keyring/blob/main/NEWS.rst)
- [Commits](jaraco/keyring@v25.5.0...v25.6.0)

---
updated-dependencies:
- dependency-name: keyring
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements-dev.txt

@@ -24,7 +24,7 @@ jaraco-context==6.0.1
     # via keyring
 jaraco-functools==4.1.0
     # via keyring
-keyring==25.5.0
+keyring==25.6.0
     # via py9pfactotum (pyproject.toml)
 mccabe==0.7.0
     # via flake8