feat: add default compiler at the operation api level (cherry-pick #2047)

[gcp-cherry-pick-bot]

Cherry-picked feat: add default compiler at the operation api level (#2047)

Signed-off-by: Charles-Edouard Brétéché charles.edouard@nirmata.com

[codecov]

Codecov Report

Attention: Patch coverage is 31.25000% with 22 lines in your changes missing coverage. Please review.

Project coverage is 67.01%. Comparing base (dbbeda8) to head (b6c0395).
Report is 1 commits behind head on release-0.2.

Files with missing lines	Patch %	Lines
pkg/runner/processors/step.go	31.25%	20 Missing and 2 partials ⚠️

Additional details and impacted files

@@               Coverage Diff               @@
##           release-0.2    #2048      +/-   ##
===============================================
- Coverage        67.14%   67.01%   -0.14%     
===============================================
  Files              137      137              
  Lines             6596     6612      +16     
===============================================
+ Hits              4429     4431       +2     
- Misses            1839     1851      +12     
- Partials           328      330       +2     

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