build(deps): bump rstcheck[sphinx] from 6.2.0 to 6.2.1 (#319)

Bumps [rstcheck[sphinx]](https://github.com/rstcheck/rstcheck) from 6.2.0 to 6.2.1.
- [Changelog](https://github.com/rstcheck/rstcheck/blob/v6.2.1/CHANGELOG.md)
- [Commits](rstcheck/rstcheck@v6.2.0...v6.2.1)

---
updated-dependencies:
- dependency-name: rstcheck[sphinx]
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

docs/requirements.txt

@@ -1,6 +1,6 @@
 furo==2024.1.29
 m2r2==0.3.3.post2
-rstcheck[sphinx]==6.2.0
+rstcheck[sphinx]==6.2.1
 rstfmt==0.0.14
 Sphinx==7.2.6
 sphinx-copybutton==0.5.2