Update soupsieve requirement from ~=2.6 to ~=2.7

Updates the requirements on [soupsieve](https://github.com/facelessuser/soupsieve) to permit the latest version.
- [Release notes](https://github.com/facelessuser/soupsieve/releases)
- [Commits](facelessuser/soupsieve@2.6...2.7)

---
updated-dependencies:
- dependency-name: soupsieve
  dependency-version: '2.7'
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -20,7 +20,7 @@ pytz~=2025.2
 requests~=2.32.3
 six~=1.17.0
 snowballstemmer~=2.2.0
-soupsieve~=2.6
+soupsieve~=2.7
 Sphinx~=8.2.3
 sphinx-material~=0.0.36
 sphinxcontrib-applehelp~=2.0.0