Bump ubi8/ubi-minimal from 8.4 to 8.5 in /images/helm-operator (#5358)

Author: dependabot[bot]

images/helm-operator/Dockerfile

@@ -17,7 +17,7 @@ COPY . .
 RUN GOOS=linux GOARCH=$TARGETARCH make build/helm-operator
 
 # Final image.
-FROM registry.access.redhat.com/ubi8/ubi-minimal:8.4
+FROM registry.access.redhat.com/ubi8/ubi-minimal:8.5
 
 ENV HOME=/opt/helm \
     USER_NAME=helm \