[stable/2023.1] feat: build arm64 images for computes (#1424)

This is an automated cherry-pick of #1350
/assign mnaser
diff --git a/zuul.d/container-images/nova.yaml b/zuul.d/container-images/nova.yaml
index 3d07802..a74080a 100644
--- a/zuul.d/container-images/nova.yaml
+++ b/zuul.d/container-images/nova.yaml
@@ -47,6 +47,7 @@
           repository: registry.atmosphere.dev/library/nova
           arch:
             - linux/amd64
+            - linux/arm64
           build_args:
             - "RELEASE={{ zuul.branch | replace('stable/', '') }}"
             - PROJECT=nova