Update flake8 requirement in /src/bindings/python

Updates the requirements on [flake8](https://github.com/pycqa/flake8) to permit the latest version.
- [Commits](PyCQA/flake8@0.1...7.1.1)

---
updated-dependencies:
- dependency-name: flake8
  dependency-type: direct:production
...

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

src/bindings/python/requirements_test.txt

@@ -2,7 +2,7 @@
 numpy
 bandit
 black
-flake8<=7.0.0
+flake8<=7.1.1
 flake8-annotations-complexity<=0.0.8
 flake8-broken-line<=1.0.0
 flake8-bugbear<=24.4.26