Update beautifulsoup4 requirement from ~=4.13.3 to ~=4.13.4

Updates the requirements on [beautifulsoup4](https://www.crummy.com/software/BeautifulSoup/bs4/) to permit the latest version.

---
updated-dependencies:
- dependency-name: beautifulsoup4
  dependency-version: 4.13.4
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,6 +1,6 @@
 alabaster~=1.0.0
 Babel~=2.17.0
-beautifulsoup4~=4.13.3
+beautifulsoup4~=4.13.4
 certifi~=2025.1.31
 chardet~=5.2.0
 css-html-js-minify~=2.5.5