NO-JIRA: fix update-commit-latest-env.py to work with multiarch manifests (#2107)

```
ERROR: Skopeo command failed for quay.io/rhoai/odh-workbench-jupyter-trustyai-cpu-py312-rhel9@sha256:c0482a03d45fbe3a2acff4e9d583830d54324e939ba1bb19472af4f29d5e233f with exit code 1.
ERROR: Stderr: time="2025-08-22T14:34:19+02:00" level=fatal msg="Error parsing manifest for image: choosing image instance: no image found in image index for architecture \"arm64\", variant \"v8\", OS \"darwin\""
```

Needed to work with the quay.io/rhoai workbench images from rhds.

Author: jiridanek

scripts/update-commit-latest-env.py

@@ -28,7 +28,7 @@ async def get_image_vcs_ref(image_url: str, semaphore: asyncio.Semaphore) -> tup
     full_image_url = f"docker://{image_url}"
 
     # Use 'inspect --config' which is much faster as it only fetches the config blob.
-    command = ["skopeo", "inspect", "--retry-times=5", "--config", full_image_url]
+    command = ["skopeo", "inspect", "--override-os=linux", "--override-arch=amd64", "--retry-times=5", "--config", full_image_url]
 
     logging.info(f"Starting config inspection for: {image_url}")