Bump pyparsing from 3.1.2 to 3.1.4 in /docs

Bumps [pyparsing](https://github.com/pyparsing/pyparsing) from 3.1.2 to 3.1.4.
- [Release notes](https://github.com/pyparsing/pyparsing/releases)
- [Changelog](https://github.com/pyparsing/pyparsing/blob/master/CHANGES)
- [Commits](pyparsing/pyparsing@pyparsing_3.1.2...3.1.4)

---
updated-dependencies:
- dependency-name: pyparsing
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

docs/requirements.txt

@@ -18,7 +18,7 @@ mkdocs-material-extensions==1.3.1
 packaging==24.1
 Pygments==2.18.0
 pymdown-extensions==10.9
-pyparsing==3.1.2
+pyparsing==3.1.4
 python-dateutil==2.9.0.post0
 PyYAML==6.0.2
 pyyaml_env_tag==0.1