feat: MLOPS-288 - use kaniko to improve wanna-ml cloud builds

[jsilva]

Describe your changes

Update cloud build step to use the recommended kaniko flow that leverages cached layer in the registry

Issue ticket number and link

MLOPS-288

Checklist before requesting a review

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• If it is a core feature, I have added thorough tests.

[codecov-commenter]

Codecov Report

Patch and project coverage have no change.

Comparison is base (8b9d240) 74.16% compared to head (c793d49) 74.16%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #84   +/-   ##
=======================================
  Coverage   74.16%   74.16%           
=======================================
  Files          57       57           
  Lines        2795     2795           
=======================================
  Hits         2073     2073           
  Misses        722      722           

Impacted Files	Coverage Δ
src/wanna/core/services/docker.py	64.76% <0.00%> (ø)

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report in Codecov by Sentry.
📢 Do you have feedback about the report comment? Let us know in this issue.