Bump ubi8/ubi-minimal from 8.5 to 8.6 (#1182)

Bumps ubi8/ubi-minimal from 8.5 to 8.6.

---
updated-dependencies:
- dependency-name: ubi8/ubi-minimal
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Dockerfile.ubi8

@@ -11,7 +11,7 @@ RUN make build && cp kube-bench /go/bin/kube-bench
 
 
 # ubi8-minimal base image for build with ubi standards
-FROM registry.access.redhat.com/ubi8/ubi-minimal:8.5 as run
+FROM registry.access.redhat.com/ubi8/ubi-minimal:8.6 as run
 
 RUN microdnf install yum findutils openssl\
   && yum -y update-minimal --security --sec-severity=Moderate --sec-severity=Important --sec-severity=Critical \