chore: update zuul job image registry secret name (#2221)

diff --git a/zuul.d/container-images/base.yaml b/zuul.d/container-images/base.yaml
index 32567c5..b74c8cf 100644
--- a/zuul.d/container-images/base.yaml
+++ b/zuul.d/container-images/base.yaml
@@ -49,7 +49,7 @@
       - ^doc/
     secrets:
       name: container_registry_credentials
-      secret: atmosphere-registry-credentials
+      secret: atmosphere-harbor-credentials
       pass-to-parent: true
     vars: *image_vars
 
@@ -60,7 +60,7 @@
       - ^doc/
     secrets:
       name: container_registry_credentials
-      secret: atmosphere-registry-credentials
+      secret: atmosphere-harbor-credentials
       pass-to-parent: true
     nodeset:
       nodes: []