chore(deps): bump filelock from 3.12.2 to 3.20.1 in /docs

Bumps [filelock](https://github.com/tox-dev/py-filelock) from 3.12.2 to 3.20.1.
- [Release notes](https://github.com/tox-dev/py-filelock/releases)
- [Changelog](https://github.com/tox-dev/filelock/blob/main/docs/changelog.rst)
- [Commits](tox-dev/filelock@3.12.2...3.20.1)

---
updated-dependencies:
- dependency-name: filelock
  dependency-version: 3.20.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

docs/requirements.txt

@@ -14,7 +14,7 @@ commonmark==0.9.1
 contourpy==1.1.0
 cycler==0.11.0
 Cython==3.0.0
-filelock==3.12.2
+filelock==3.20.1
 flatbuffers==23.5.26
 fonttools==4.43.0
 gast==0.4.0