hooks: implement kubectl deploy hooks

[gsquared94]

Hooks PR 7 of n

Related: #1441, #6147, #6159, #6160, #6163, #6177
Refer to http://tinyurl.com/skaffold-hooks for detailed design
This PR implements deploy stage lifecycle hooks (starting with the kubectl deployer). Try out example integration/lifecycle-hooks.

[MarlonGamez]

nice! Looks good to me. Verified changes locally as well

[codecov]

Codecov Report

Merging #6376 (07f19c5) into main (cf4aab8) will decrease coverage by 0.10%.
The diff coverage is 51.19%.

@@            Coverage Diff             @@
##             main    #6376      +/-   ##
==========================================
- Coverage   70.49%   70.38%   -0.11%     
==========================================
  Files         498      499       +1     
  Lines       22560    22722     +162     
==========================================
+ Hits        15903    15994      +91     
- Misses       5627     5685      +58     
- Partials     1030     1043      +13     

Impacted Files	Coverage Δ
pkg/skaffold/schema/latest/v1/config.go	62.16% <ø> (ø)
pkg/skaffold/deploy/kubectl/kubectl.go	64.07% <6.66%> (-3.95%)	⬇️
pkg/skaffold/deploy/deploy_mux.go	42.85% <12.50%> (-2.60%)	⬇️
pkg/skaffold/hooks/container.go	52.45% <18.75%> (-11.99%)	⬇️
pkg/skaffold/log/stream/stream.go	81.25% <66.66%> (-4.47%)	⬇️
pkg/skaffold/hooks/deploy.go	85.71% <85.71%> (ø)
pkg/skaffold/event/v2/status_check.go	85.45% <0.00%> (-14.55%)	⬇️
pkg/skaffold/kubernetes/client/client.go	26.66% <0.00%> (-13.34%)	⬇️
pkg/skaffold/util/port.go	82.50% <0.00%> (-8.55%)	⬇️
pkg/skaffold/kubernetes/context/context.go	76.08% <0.00%> (-3.46%)	⬇️
... and 25 more

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