Update flake8 requirement from <7.3.0,>=7.0.0 to >=7.0.0,<7.4.0

Updates the requirements on [flake8](https://github.com/pycqa/flake8) to permit the latest version.
- [Commits](PyCQA/flake8@7.0.0...7.3.0)

---
updated-dependencies:
- dependency-name: flake8
  dependency-version: 7.3.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
 autopep8>=2.1.0,<2.4.0
-flake8>=7.0.0,<7.3.0
+flake8>=7.0.0,<7.4.0
 jupyterlab>=4.1.8,<4.5.0
 bytecorecompiler==1.0.4