Description of problem:

Running builds on arm64 arch is broken. The default buildah ClusterBuildStrategy pulls x86 images in arm64 environment.

Prerequisites (if any, like setup, operators/versions):

• Builds for OpenShift 1.2.0
• OpenShift 4.17

Steps to Reproduce

• Get a arm64 cluster from cluster bot
• Install operator in cluster
• Try making a build and buildrun from the example, using the default buildah ClusterBuildStrategy

Actual results:

Build fails with error:

2024/11/20 14:21:55 Error executing command: fork/exec /bin/bash: exec format error

Expected results:

Build succeeds

Reproducibility (Always/Intermittent/Only Once):

Always

Acceptance criteria: 

Definition of Done:

Build Details:

Builds for OpenShift 1.2.0 (release candidate)

Additional info (Such as Logs, Screenshots, etc):

Buildah image appears to be referencing an x86_64 image:

```
➜ docker inspect registry.redhat.io/ubi8/buildah@sha256:1c89cc3cab0ac0fc7387c1fe5e63443468219aab6fd531c8dad6d22fd999819e | grep architecture "architecture": "x86_64",
```