build(deps): update fastapi requirement from >=0.62.0 to >=0.136.1

Updates the requirements on [fastapi](https://github.com/fastapi/fastapi) to permit the latest version.
- [Release notes](https://github.com/fastapi/fastapi/releases)
- [Commits](fastapi/fastapi@0.62.0...0.136.1)

---
updated-dependencies:
- dependency-name: fastapi
  dependency-version: 0.136.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,3 +1,3 @@
-fastapi>=0.62.0
+fastapi>=0.136.1
 cloudevents[pydantic]
 pydantic_settings