feat: Add LU Decomposition algorithm

[thanay2007]

Closes #6833

• 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 mvn spotless:apply.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 34 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.82%. Comparing base (d5289b9) to head (0f0bb84).
⚠️ Report is 93 commits behind head on master.

Files with missing lines	Patch %	Lines
...java/com/thealgorithms/matrix/LUDecomposition.java	0.00%	34 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6844      +/-   ##
============================================
- Coverage     77.95%   77.82%   -0.13%     
- Complexity     6429     6430       +1     
============================================
  Files           736      737       +1     
  Lines         21476    21510      +34     
  Branches       4204     4211       +7     
============================================
- Hits          16742    16741       -1     
- Misses         4060     4095      +35     
  Partials        674      674              

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[github-actions]

This pull request has been automatically closed because its workflows or checks failed and it has been inactive for more than 14 days. Please fix the workflows and reopen if you'd like to continue. Merging from main/master alone does not count as activity.