Build ARM64 images

[Molter73]

Description

GCP added ARM VMs last year. With the effort to support Power and Z architectures that has been ongoing for about the past year as well, it is relatively easy to enable collector builds for ARM and add integration tests for it using CO-RE BPF thanks to Falco supporting the architecture already. So, this PR adds ARM image builds for collector and tests them on GCP.

Checklist

• Investigated and inspected CI test results

Testing Performed

CI should be enough.

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[github-actions]

Kernel	Method	Without Collector Time (secs)	With Collector Time (secs)	Baseline median (secs)	Collector median (secs)	PValue

[robbycochran]

Nice! Tests passing on arm64!

[Stringy]

LGTM! This is excellent, and demonstrates all the work we put into multi-arch was worth the effort!