Bump soupsieve from 2.5 to 2.6 (#828)

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

---
updated-dependencies:
- dependency-name: soupsieve
  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]

requirements.txt

@@ -34,7 +34,7 @@ PyYAML==6.0.2
 requests==2.32.3
 reuse==4.0.3
 snowballstemmer==2.2.0
-soupsieve==2.5
+soupsieve==2.6
 Sphinx==8.0.2
 sphinx-book-theme==1.1.3
 sphinxcontrib-applehelp==2.0.0