Bump cloudevents from 1.11.0 to 1.12.0

Bumps [cloudevents](https://github.com/cloudevents/sdk-python) from 1.11.0 to 1.12.0.
- [Changelog](https://github.com/cloudevents/sdk-python/blob/main/CHANGELOG.md)
- [Commits](cloudevents/sdk-python@1.11.0...1.12.0)

---
updated-dependencies:
- dependency-name: cloudevents
  dependency-version: 1.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -42,7 +42,7 @@ starlette==0.47.2; python_version > "3.8"
 starlette==0.44.0; python_version == "3.8"
 
 cbitstruct==1.1.0; python_version <= "3.12"
-cloudevents==1.11.0
+cloudevents==1.12.0
 pydantic==1.10.22
 
 Werkzeug==3.1.3; python_version > "3.8"