Revert to regctl v0.4.5

Signed-off-by: Evan Lezar <elezar@nvidia.com>

Author: elezar

.common-ci.yml

@@ -49,7 +49,7 @@ workflow:
 # Download the regctl binary for use in the release steps
 .regctl-setup:
   before_script:
-    - export REGCTL_VERSION=v0.9.0
+    - export REGCTL_VERSION=v0.4.5
     - apk add --no-cache curl
     - mkdir -p bin
     - curl -sSLo bin/regctl https://github.com/regclient/regclient/releases/download/${REGCTL_VERSION}/regctl-linux-amd64