Increase alert thresholds for s390x to 6 hrs

[AlekseiNikiforovIBM]

Current runners are expected to have a bit of queue occasionally.

[jordanconway]

I believe that this deploy failed because it was a PR from a fork and oidc auth to aws is only configured to allow this repo currently.

[jordanconway]

We'll push it through without the terraform automation if need be, but can you please rebase and sign your commit?
https://docs.github.com/en/authentication/managing-commit-signature-verification/about-commit-signature-verification

[AlekseiNikiforovIBM]

We'll push it through without the terraform automation if need be, but can you please rebase and sign your commit? https://docs.github.com/en/authentication/managing-commit-signature-verification/about-commit-signature-verification

I've signed my commit.

Commit was already on top of main, so please let me know if I need to rebase it somewhere else.

[zxiiro]

I'll work on making tofu plan work on PRs from forked repos. The change is simple enough that I think we can just merge.