Replace bandit, flake8, isort, and pyupgrade with ruff (#8178)

* Replace bandit, flake8, isort, and pyupgrade with ruff

* Comment on ruff rules

* updating DIRECTORY.md

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Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>

maths/pythagoras.py

@@ -14,17 +14,13 @@ class Point:
 
 
 def distance(a: Point, b: Point) -> float:
-    return math.sqrt(abs((b.x - a.x) ** 2 + (b.y - a.y) ** 2 + (b.z - a.z) ** 2))
-
-
-def test_distance() -> None:
     """
     >>> point1 = Point(2, -1, 7)
     >>> point2 = Point(1, -3, 5)
     >>> print(f"Distance from {point1} to {point2} is {distance(point1, point2)}")
     Distance from Point(2, -1, 7) to Point(1, -3, 5) is 3.0
     """
-    pass
+    return math.sqrt(abs((b.x - a.x) ** 2 + (b.y - a.y) ** 2 + (b.z - a.z) ** 2))
 
 
 if __name__ == "__main__":