Bump bleach from 6.2.0 to 6.4.0 in /Python

Bumps [bleach](https://github.com/mozilla/bleach) from 6.2.0 to 6.4.0.
- [Changelog](https://github.com/mozilla/bleach/blob/main/CHANGES)
- [Commits](mozilla/bleach@v6.2.0...v6.4.0)

---
updated-dependencies:
- dependency-name: bleach
  dependency-version: 6.4.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Python/requirements-notebook.txt

@@ -7,7 +7,7 @@ async-lru==2.0.4
 attrs==25.1.0
 babel==2.16.0
 beautifulsoup4==4.12.3
-bleach==6.2.0
+bleach==6.4.0
 certifi==2024.12.14
 cffi==1.17.1
 charset-normalizer==3.4.1