feat: add recursive bubble sort algorithm with doctests and type hints

[vannu07]

Implement recursive Bubble Sort algorithm with doctests

Describe your change

Added a recursive implementation of the Bubble Sort algorithm with proper type hints and doctests for automated verification.

---

Changes made

• Added new file: sorting/bubble_sort_recursive.py
• Implemented bubble_sort_recursive() function.
• Added detailed docstring with doctests.
• Added type hints for parameters and return values.
• Verified using doctest, ruff, and mypy (all passed).

---

Checklist

• I have read [CONTRIBUTING.md](https://github.com/TheAlgorithms/Python/blob/master/CONTRIBUTING.md).
• This pull request is all my own work — I have not plagiarized.
• I know that pull requests will not be merged if they fail automated tests.
• This PR only changes one algorithm file.
• All new Python files are placed inside an existing directory (sorting/).
• All filenames are lowercase and contain no spaces or dashes.
• All function and variable names follow Python naming conventions.
• All function parameters and return values have type hints.
• All functions include doctests that pass automated testing.
• Includes at least one reference link to Wikipedia or similar explanation.

---

Reference

🔗 [Bubble Sort — Wikipedia](https://en.wikipedia.org/wiki/Bubble_sort)

[vannu07]

Hi team,

I see that all checks have passed for this PR, and it adheres to the contribution guidelines, including the addition of doctests and type hints.

Could a maintainer please review it and, if appropriate, apply the hacktoberfest-accepted label? This would ensure the contribution counts towards Hacktoberfest.

Thanks for your time and for maintaining this great repository!

[vannu07]

Hi maintainers, any update on this