[Backport 2.x] Use string-based version parsing to improve portability

[opensearch-trigger-bot]

Backport 88fe98e from #1067.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 6 lines in your changes missing coverage. Please review.

Project coverage is 75.57%. Comparing base (c5450fb) to head (c61bee0).
Report is 1 commits behind head on 2.x.

Files with missing lines	Patch %	Lines
...ramework/transport/ReprovisionWorkflowRequest.java	0.00%	0 Missing and 2 partials ⚠️
...earch/flowframework/transport/WorkflowRequest.java	0.00%	0 Missing and 2 partials ⚠️
...arch/flowframework/transport/WorkflowResponse.java	0.00%	0 Missing and 2 partials ⚠️

❌ Your patch status has failed because the patch coverage (0.00%) is below the target coverage (70.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff            @@
##                2.x    #1068   +/-   ##
=========================================
  Coverage     75.57%   75.57%           
  Complexity     1050     1050           
=========================================
  Files           101      101           
  Lines          5212     5212           
  Branches        498      498           
=========================================
  Hits           3939     3939           
  Misses         1035     1035           
  Partials        238      238           

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