Prepare v0.4.1

[poupeaua]

Fix:

• copy rectangle method: needed to pass attribute regularity_rtol meaning regularity relative tolerance when copying. Otherwise we could instantiate a rectangle with a higher specific regularity_rtol value but once created, we were not able to copy it (using .copy() method) since the regularity_rtol param used was the default value which is low on purpose.
• add copy method to the AxisAlignedRectangle class too
• update precommit hooks versions
• update dependencies versions via poetry
• add otary rainbow svg badge
• add more unit test to tests copy methods based on what was added
• add CI/CD pipeline test for Python v3.14. Pipelines now concurrently run on versions: 3.10, 3.11, 3.12, 3.13, 3.14.