feat: inject namespace from rendered manifests in post deploy hooks

[renzodavid9]

Fixes: #8357

Description
This PR adds the logic to inject the namespaces from the rendered manifests into the post deploy hooks. The manifests namespaces are assigned every time a new deployment happens.

Follow-up Work
Check this behaviour for the Sync hooks which use the same namespaces env variable

[codecov]

Codecov Report

Merging #9090 (61d4e26) into main (290280e) will decrease coverage by 7.07%.
Report is 1028 commits behind head on main.
The diff coverage is 48.90%.

@@            Coverage Diff             @@
##             main    #9090      +/-   ##
==========================================
- Coverage   70.48%   63.42%   -7.07%     
==========================================
  Files         515      628     +113     
  Lines       23150    32294    +9144     
==========================================
+ Hits        16317    20482    +4165     
- Misses       5776    10251    +4475     
- Partials     1057     1561     +504     

Files Changed	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/generate_pipeline.go	60.00% <ø> (ø)
cmd/skaffold/app/cmd/inspect_modules.go	65.00% <0.00%> (ø)
cmd/skaffold/app/cmd/inspect_profiles.go	66.66% <0.00%> (ø)
... and 41 more

... and 432 files with indirect coverage changes

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