refactor: add parameterized tests for BitSwap

[alxkm]

Added parameterized tests covering:

• Different bit cases
• Same bit cases
• Edge positions
• Invalid positions
• Original test cases

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized it.
• All filenames are in PascalCase.
• All functions and variable names follow Java naming conventions.
• All new algorithms have a URL in their comments that points to Wikipedia or other similar explanations.
• All new code is formatted with clang-format -i --style=file path/to/your/file.java

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 74.56%. Comparing base (9b4dec0) to head (f8ed188).

Files with missing lines	Patch %	Lines
...ava/com/thealgorithms/bitmanipulation/BitSwap.java	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6347      +/-   ##
============================================
- Coverage     74.57%   74.56%   -0.01%     
- Complexity     5450     5453       +3     
============================================
  Files           682      682              
  Lines         19034    19036       +2     
  Branches       3689     3690       +1     
============================================
  Hits          14194    14194              
- Misses         4277     4278       +1     
- Partials        563      564       +1     

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[siriak]

Looks good, thanks!