ci: Fix up image loading for lint-test-helm (#746)

Author: jimmidyson

.github/workflows/checks.yml

@@ -239,7 +239,7 @@ jobs:
           devbox run -- \
             ct install \
               --config charts/ct-config.yaml \
-              --helm-extra-set-args "--set-string image.repository=ko.local/cluster-api-runtime-extensions-nutanix --set-string image.tag=$(devbox run -- gojq -r .version dist/metadata.json) --set-string helmRepositoryImage.tag=$(devbox run -- gojq -r .version dist/metadata.json)"
+              --helm-extra-set-args "--set-string image.repository=ko.local/cluster-api-runtime-extensions-nutanix --set-string image.tag=$(devbox run -- gojq -r .version dist/metadata.json) --set-string helmRepositoryImage.tag=$(devbox run -- gojq -r .version dist/metadata.json)-$(devbox run -- go env GOARCH)"
         env:
           KUBECONFIG: ct-kind-kubeconfig