[PM] Skaffold Debug Helper arm64 images have amd64 binaries

[tejal29]

Relevant issue: GoogleCloudPlatform/cloud-code-samples#721

Relevant DOc:
Error

Waiting for deployments to stabilize… - deployment/go-hello-world: container install-go-debug-support terminated with exit code 1
  - pod/go-hello-world-788bc8c8bb-cp7vp: container install-go-debug-support terminated with exit code 1
    [go-hello-world-788bc8c8bb-cp7vp install-go-debug-support] 
    standard_init_linux.go:219: exec user process caused: exec format error - deployment/go-hello-world failed. 
   Error: container install-go-debug-support terminated with exit code 1.

Tasks:

• Create an error code for "exec format error" error - P0
• Switch to Github Actions and add ARM64 tests - P0
• Fully automate image deployment from cloudbuild - P1
• Add metrics to record os/arch of deployment cluster - P2

[tejal29]

@briandealwis and @aaron-prindle are any of you working on "Switch to Github Actions and add ARM64 tests - P0" ?

[aaron-prindle]

Github Actions does not currently support ARM64 images. They allow you to register your own machines which can have an arm64 label which won't work for our use case currently. As such, this has to be done on Travis atm which @briandealwis is working on here:
GoogleContainerTools/container-debug-support#80

[aaron-prindle]

See related issues:
#5989
GoogleContainerTools/container-debug-support#82

[tejal29]

Ah ok! Sounds good.