Bump soupsieve from 2.8.3 to 2.8.4 (#1048)

Bumps [soupsieve](https://github.com/facelessuser/soupsieve) from 2.8.3 to 2.8.4.
- [Release notes](https://github.com/facelessuser/soupsieve/releases)
- [Commits](facelessuser/soupsieve@2.8.3...2.8.4)

---
updated-dependencies:
- dependency-name: soupsieve
  dependency-version: 2.8.4
  dependency-type: indirect
...

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Author: dependabot[bot]

requirements.txt

@@ -130,7 +130,7 @@ requests==2.33.0
     #   mkdocs-material
 six==1.17.0
     # via python-dateutil
-soupsieve==2.8.3
+soupsieve==2.8.4
     # via beautifulsoup4
 super-collections==0.6.2
     # via mkdocs-macros-plugin