Update flake8 requirement from <6.1,>=6.0 to >=6.0,<6.2

Updates the requirements on [flake8](https://github.com/pycqa/flake8) to permit the latest version.
- [Commits](PyCQA/flake8@6.0.0...6.1.0)

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

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

pyproject.toml

@@ -58,7 +58,7 @@ doc = [
 test = [
     "coverage>=4.5.3,<7.3",
     "coveralls>=3.0.0,<3.3.2",
-    "flake8>=6.0,<6.1",
+    "flake8>=6.0,<6.2",
     "flake8-black>=0.3.4,<0.4",
     "flake8-bugbear>=23.5,<23.10",
     "pytest>=7.1.2,<7.4.4",