MNT: (deps): Bump flake8-rst-docstrings from 0.2.7 to 0.3.0 in /ci

Bumps [flake8-rst-docstrings](https://github.com/peterjc/flake8-rst-docstrings) from 0.2.7 to 0.3.0.
- [Commits](peterjc/flake8-rst-docstrings@v0.2.7...v0.3.0)

---
updated-dependencies:
- dependency-name: flake8-rst-docstrings
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

ci/linting_requirements.txt

@@ -9,7 +9,7 @@ flake8-isort==6.1.1
 isort==5.13.2
 flake8-requirements==2.2.1
 
-flake8-rst-docstrings==0.2.7
+flake8-rst-docstrings==0.3.0
 
 doc8==1.1.2
 restructuredtext_lint==1.4.0