Fix test timeout failures in TestDebug/helm

[briandealwis]

Description
Change the integration tests WaitForDeploymentsToStablize() to wait for up to 2 minutes.

Also updates the diagnosing logging to log the command to be executed before executing the command for more accurate timestamps.

Fixes: #5249

[codecov]

Codecov Report

Merging #5252 (a76ca45) into master (37ed158) will increase coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #5252      +/-   ##
==========================================
+ Coverage   71.86%   71.90%   +0.03%     
==========================================
  Files         388      388              
  Lines       14051    14043       -8     
==========================================
- Hits        10098    10097       -1     
+ Misses       3207     3204       -3     
+ Partials      746      742       -4     

Impacted Files	Coverage Δ
pkg/skaffold/util/tar.go	50.66% <0.00%> (-5.34%)	⬇️
pkg/skaffold/docker/image.go	79.53% <0.00%> (+1.39%)	⬆️
pkg/skaffold/util/cmd.go	66.66% <0.00%> (+15.23%)	⬆️

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[briandealwis]

Hmm, this doesn't seem to be sufficient! 🤣

    debug_test.go:105: Timed out waiting for deployments [skaffold-helm] to stabilize in namespace skaffoldt9tjf

[briandealwis]

Going to commit this since it should hopefully reduce the number of problems with the TestDebug/helm test and I hope the logs should give us more information about what's going wrong if it takes longers.