build(deps): bump cloudevents from 1.9.0 to 2.0.0

Bumps [cloudevents](https://github.com/cloudevents/sdk-python) from 1.9.0 to 2.0.0.
- [Changelog](https://github.com/cloudevents/sdk-python/blob/main/CHANGELOG.md)
- [Commits](cloudevents/sdk-python@1.9.0...2.0.0)

---
updated-dependencies:
- dependency-name: cloudevents
  dependency-version: 2.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pyproject.toml

@@ -16,7 +16,7 @@ readme = "README.md"
 requires-python = ">=3.10"
 license = {text = "LGPL-2.1-or-later"}
 dependencies = [
-  "cloudevents == 1.9.0",
+  "cloudevents == 2.0.0",
   "beanie == 1.29.0",
   "fastapi[all] == 0.135.3",
   "fastapi-pagination == 0.12.30",