chore: fix transformer share config-map issues

[ericzzzzzzz]

Fixes: #8580
Related: Relevant tracking issues, for context
Merge before/after: Dependent or prerequisite PRs

Description

• kpt Transformers with the same name are currently sharing configmap which can produce unexpected behavior
  • uses could define create-setter, apply-setter, create-setter, apply-setter in a row in skaffold transform stanza
    each entry should only be able to access its own datamap
• kpt set-namespace image doesn't have a latest version, we need to specify the version, so added one.
• change cmd run to use util cmd run to make debugging life easier

[codecov]

Codecov Report

Merging #8582 (6dff73d) into main (290280e) will decrease coverage by 6.24%.
The diff coverage is 54.18%.

@@            Coverage Diff             @@
##             main    #8582      +/-   ##
==========================================
- Coverage   70.48%   64.24%   -6.24%     
==========================================
  Files         515      610      +95     
  Lines       23150    30580    +7430     
==========================================
+ Hits        16317    19647    +3330     
- Misses       5776     9461    +3685     
- Partials     1057     1472     +415     

Impacted Files	Coverage Δ
cmd/skaffold/app/cmd/completion.go	13.04% <0.00%> (-1.25%)	⬇️
cmd/skaffold/app/cmd/config/list.go	65.21% <ø> (ø)
cmd/skaffold/app/cmd/config/set.go	88.72% <ø> (ø)
cmd/skaffold/app/cmd/config/util.go	54.28% <ø> (ø)
cmd/skaffold/app/cmd/credits.go	100.00% <ø> (ø)
cmd/skaffold/app/cmd/credits/export.go	0.00% <0.00%> (ø)
cmd/skaffold/app/cmd/deploy.go	40.90% <0.00%> (-12.94%)	⬇️
cmd/skaffold/app/cmd/diagnose.go	62.22% <0.00%> (-2.65%)	⬇️
cmd/skaffold/app/cmd/flags.go	93.00% <ø> (+2.18%)	⬆️
cmd/skaffold/app/cmd/generate_pipeline.go	60.00% <ø> (ø)
... and 38 more

... and 388 files with indirect coverage changes

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[aaron-prindle]

LGTM!