Added PriorityQueueSort algorithm and Tests

[Rahul-150705]

• Implemented PriorityQueueSort using Java's PriorityQueue (Min-Heap)
• Added JavaDoc for class and method
• Added test cases for normal, empty, negative, duplicate, and sorted arrays
• Time Complexity: O(n log n)
• Space Complexity: O(n)
• This is my own work

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.17%. Comparing base (45275ee) to head (be89524).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6532      +/-   ##
============================================
+ Coverage     75.14%   75.17%   +0.02%     
- Complexity     5590     5595       +5     
============================================
  Files           687      688       +1     
  Lines         19352    19361       +9     
  Branches       3742     3744       +2     
============================================
+ Hits          14543    14554      +11     
+ Misses         4245     4244       -1     
+ Partials        564      563       -1     

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[donphelix]

Looks good!

[Rahul-150705]

Looks good!

thanks man!