chore: Add helm cli in magnum image
To remove flux dependency from magnu cluster-api driver,
we are gonna use helm to install cluster autoscaler and it requires helm cli.
diff --git a/internal/pkg/image_repositories/template/Dockerfile b/internal/pkg/image_repositories/template/Dockerfile
index a2604ee..98edce3 100644
--- a/internal/pkg/image_repositories/template/Dockerfile
+++ b/internal/pkg/image_repositories/template/Dockerfile
@@ -30,5 +30,6 @@
rm -rf /var/lib/apt/lists/*
EOF
{{- else if eq .Project "magnum" }}
+COPY --from=docker.io/alpine/helm:3.11.2 /usr/bin/helm /usr/local/bin/helm
COPY --from=gcr.io/go-containerregistry/crane /ko-app/crane /usr/local/bin/crane
{{- end }}