[v2] Add transformer in renderer step.

[yuwenma]

Fixes: #nnn
Related: #5673

[codecov]

Codecov Report

Merging #6051 (31c58d0) into master (d658049) will decrease coverage by 0.01%.
The diff coverage is 57.89%.

@@            Coverage Diff             @@
##           master    #6051      +/-   ##
==========================================
- Coverage   70.25%   70.24%   -0.02%     
==========================================
  Files         473      474       +1     
  Lines       18110    18165      +55     
==========================================
+ Hits        12724    12760      +36     
- Misses       4454     4472      +18     
- Partials      932      933       +1     

Impacted Files	Coverage Δ
pkg/skaffold/schema/latest/v2/config.go	100.00% <ø> (ø)
pkg/skaffold/schema/v3alpha1/config.go	50.00% <ø> (ø)
pkg/skaffold/render/renderer/renderer.go	59.30% <46.15%> (-2.86%)	⬇️
pkg/skaffold/render/transform/transform.go	60.46% <60.46%> (ø)
pkg/skaffold/render/validate/validate.go	100.00% <100.00%> (ø)
pkg/skaffold/docker/parse.go	86.19% <0.00%> (-0.96%)	⬇️
pkg/skaffold/docker/image.go	79.53% <0.00%> (+1.39%)	⬆️
pkg/skaffold/util/tar.go	56.00% <0.00%> (+5.33%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update d658049...31c58d0. Read the comment docs.

[tejal29]

couple nits