Bump ubi8/ubi-minimal from 8.4 to 8.5 in /images/custom-scorecard-tests (#5357)

Author: dependabot[bot]

images/custom-scorecard-tests/Dockerfile

@@ -17,7 +17,7 @@ COPY . .
 RUN GOOS=linux GOARCH=$TARGETARCH make build/custom-scorecard-tests
 
 # 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/custom-scorecard-tests \
     USER_NAME=custom-scorecard-tests \