feat: add compiler field in configuration api (cherry-pick #2037)

[gcp-cherry-pick-bot]

Cherry-picked feat: add compiler field in configuration api (#2037)

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

[codecov]

Codecov Report

Attention: Patch coverage is 67.77251% with 68 lines in your changes missing coverage. Please review.

Project coverage is 67.26%. Comparing base (4649c94) to head (2a26e41).
Report is 1 commits behind head on release-0.2.

Files with missing lines	Patch %	Lines
pkg/runner/processors/step.go	50.00%	43 Missing ⚠️
pkg/engine/context/context.go	66.66%	3 Missing ⚠️
pkg/runner/run.go	0.00%	2 Missing and 1 partial ⚠️
pkg/apis/v1alpha1/types.go	0.00%	2 Missing ⚠️
pkg/engine/kubectl/mapping.go	33.33%	0 Missing and 2 partials ⚠️
pkg/engine/operations/assert/operation.go	60.00%	2 Missing ⚠️
pkg/engine/operations/error/operation.go	50.00%	2 Missing ⚠️
pkg/engine/operations/internal/env.go	0.00%	2 Missing ⚠️
pkg/apis/conversion/configuration.go	66.66%	1 Missing ⚠️
pkg/engine/checks/check.go	50.00%	0 Missing and 1 partial ⚠️
... and 7 more

Additional details and impacted files

@@               Coverage Diff               @@
##           release-0.2    #2038      +/-   ##
===============================================
- Coverage        67.29%   67.26%   -0.03%     
===============================================
  Files              137      137              
  Lines             6549     6583      +34     
===============================================
+ Hits              4407     4428      +21     
- Misses            1819     1831      +12     
- Partials           323      324       +1     

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