feat(Workflow): add context and wfAction to Execute method

[wooln]

• Add Context property to Workflow class
• Update Execute method in WorkflowGlobalTransaction to include wfAction parameter
• Add test case for Execute method with wfAction

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 70.12%. Comparing base (16f174d) to head (5f2ae75).

Files with missing lines	Patch %	Lines
src/Dtmworkflow/WorkflowGlobalTransaction.cs	60.00%	1 Missing and 1 partial ⚠️
src/Dtmworkflow/Workflow.cs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #103      +/-   ##
==========================================
- Coverage   70.18%   70.12%   -0.07%     
==========================================
  Files          45       45              
  Lines        1999     2005       +6     
  Branches      196      198       +2     
==========================================
+ Hits         1403     1406       +3     
- Misses        558      560       +2     
- Partials       38       39       +1     

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