feat: implement isSemver

[D-Sketon]

close https://github.com/toss/es-toolkit/issues/812

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Name	Status	Preview	Comments	Updated (UTC)
es-toolkit	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 17, 2025 4:40pm

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 80.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 98.83%. Comparing base (47049ae) to head (7eeeba5).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1144      +/-   ##
==========================================
- Coverage   98.85%   98.83%   -0.03%     
==========================================
  Files         468      469       +1     
  Lines        4381     4386       +5     
  Branches     1298     1299       +1     
==========================================
+ Hits         4331     4335       +4     
- Misses         50       51       +1     

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