[backport release/v5.0] Add integration tests for arm64

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This is an automated request to port PR #555 by @mallardduck

Original PR body:

[mallardduck]

@dharmit - before we review this backport and merge it, I just had the thought that I should wait until the merge to main CI completes at the very least. And maybe I would even take a deeper dive in the current CI workflows involved here and the scripts - it's been too long since the last time I took a deep look here.

[dharmit]

I should wait until the merge to main CI completes at the very least.

IIUC, it's failing.

[mallardduck]

Looking into the failure a bit today. I suspect we can fix with more CI changes on GHA side, or potentially via adjustments to our scripts/ files.

TBH, I think this warrants me taking a deeper dive into CI stuff, since our ideal would be that we have easy methods to run everything locally in a similar way to the GHA stuff. However that will take time and shouldn't distract from our immediate issue.

I will spend tomorrow working on a simple fix for this build issue. I think we can try a simple "hack" like the other one I have in place for container image tags.

But big picture I will document for us a roadmap to get our CI fully embracing the new branching strategy. That way we will have proper head builds for release branches and main - built with both a static tag and a rolling -head tag.

[mallardduck]

Given that we will need to make changes to main I'll close this out and we'll manually backport.