Update celery requirement from ==5.4.* to ==5.5.* (#5010)

Updates the requirements on [celery](https://github.com/celery/celery) to permit the latest version.
- [Release notes](https://github.com/celery/celery/releases)
- [Changelog](https://github.com/celery/celery/blob/main/Changelog.rst)
- [Commits](https://github.com/celery/celery/compare/v5.4.0rc1...v5.5.1)

---
updated-dependencies:
- dependency-name: celery
  dependency-version: 5.5.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pyproject.toml

@@ -30,7 +30,7 @@ dependencies = [
   "babel",
   "BeautifulSoup4==4.13.*",
   "bleach==6.2.*",
-  "celery==5.4.*",
+  "celery==5.5.*",
   "chardet==5.2.*",
   "cryptography>=44.0.0",
   "css-inline==0.14.*",