chore(deps): bump soupsieve from 2.5 to 2.6 in /docs/_build

Bumps [soupsieve](https://github.com/facelessuser/soupsieve) from 2.5 to 2.6.
- [Release notes](https://github.com/facelessuser/soupsieve/releases)
- [Commits](https://github.com/facelessuser/soupsieve/compare/2.5...2.6)

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

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

docs/_build/requirements.txt

@@ -18,6 +18,6 @@ python-dateutil==2.9.0.post0
 PyYAML==6.0.2
 pyyaml_env_tag==0.1
 six==1.16.0
-soupsieve==2.5
+soupsieve==2.6
 watchdog==4.0.2
 zipp==3.19.2