chore(deps): bump httpx from 0.21.3 to 0.23.0 in /examples/FastAPI

Bumps [httpx](https://github.com/encode/httpx) from 0.21.3 to 0.23.0.
- [Release notes](https://github.com/encode/httpx/releases)
- [Changelog](https://github.com/encode/httpx/blob/master/CHANGELOG.md)
- [Commits](encode/httpx@0.21.3...0.23.0)

---
updated-dependencies:
- dependency-name: httpx
  dependency-type: direct:production
...

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

Author: dependabot[bot]

examples/FastAPI/requirements.txt

@@ -11,7 +11,7 @@ gotrue==0.5.0
 h11==0.12.0
 httpcore==0.14.7
 httptools==0.3.0
-httpx==0.21.3
+httpx==0.23.0
 idna==3.3
 packaging==21.3
 postgrest-py==0.8.2