style: enable MethodName in CheckStyle

[CodaBlurd]

Related to #5119

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 22.91667% with 37 lines in your changes are missing coverage. Please review.

Project coverage is 38.62%. Comparing base (ea4dc15) to head (519abd7).

Files	Patch %	Lines
.../thealgorithms/dynamicprogramming/WineProblem.java	0.00%	7 Missing ⚠️
...n/java/com/thealgorithms/others/KochSnowflake.java	0.00%	5 Missing ⚠️
...com/thealgorithms/sorts/MergeSortNoExtraSpace.java	0.00%	5 Missing ⚠️
...healgorithms/datastructures/trees/GenericTree.java	0.00%	4 Missing ⚠️
...amming/MatrixChainRecursiveTopDownMemoisation.java	0.00%	3 Missing ⚠️
...ava/com/thealgorithms/maths/TrinomialTriangle.java	0.00%	3 Missing ⚠️
...n/java/com/thealgorithms/misc/ThreeSumProblem.java	0.00%	3 Missing ⚠️
...amicprogramming/LongestPalindromicSubsequence.java	0.00%	2 Missing ⚠️
...ynamicprogramming/LongestPalindromicSubstring.java	0.00%	2 Missing ⚠️
...gorithms/datastructures/trees/nearestRightKey.java	0.00%	1 Missing ⚠️
... and 2 more

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #5182      +/-   ##
============================================
- Coverage     38.63%   38.62%   -0.02%     
  Complexity     2379     2379              
============================================
  Files           516      516              
  Lines         15385    15385              
  Branches       2957     2957              
============================================
- Hits           5944     5942       -2     
- Misses         9157     9158       +1     
- Partials        284      285       +1     

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