build(deps): bump chardet from 7.2.0 to 7.4.0.post2

Bumps [chardet](https://github.com/chardet/chardet) from 7.2.0 to 7.4.0.post2.
- [Release notes](https://github.com/chardet/chardet/releases)
- [Changelog](https://github.com/chardet/chardet/blob/main/docs/changelog.rst)
- [Commits](https://github.com/chardet/chardet/compare/7.2.0...7.4.0.post2)

---
updated-dependencies:
- dependency-name: chardet
  dependency-version: 7.4.0.post2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements.txt

@@ -4,7 +4,7 @@ attrs==26.1.0
 backports.functools-lru-cache==2.0.0
 blurhash==1.1.5
 certifi==2026.2.25
-chardet==7.2.0
+chardet==7.4.0.post2
 charset-normalizer==3.4.6
 colorama==0.4.6
 configobj==5.0.9