Bump breathe from 4.34.0 to 4.35.0 in /.docs (#32)

Bumps [breathe](https://github.com/michaeljones/breathe) from 4.34.0 to 4.35.0.
- [Release notes](https://github.com/michaeljones/breathe/releases)
- [Changelog](https://github.com/breathe-doc/breathe/blob/main/CHANGELOG.rst)
- [Commits](breathe-doc/breathe@v4.34.0...v4.35.0)

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

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

Author: dependabot[bot]

.docs/requirements.txt

@@ -1,2 +1,2 @@
-breathe==4.34.0
+breathe==4.35.0
 sphinx_rtd_theme==1.2.0