Bump flake8 from 7.2.0 to 7.3.0

Bumps [flake8](https://github.com/pycqa/flake8) from 7.2.0 to 7.3.0.
- [Commits](PyCQA/flake8@7.2.0...7.3.0)

---
updated-dependencies:
- dependency-name: flake8
  dependency-version: 7.3.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Pipfile

@@ -11,7 +11,7 @@ uvicorn = "~=0.34"
 
 [dev-packages]
 black = "~=25.1"
-flake8 = "~=7.2"
+flake8 = "~=7.3"
 httpx = "~=0.28"
 isort = "~=6.0"
 pytest = "~=8.4"