chore(deps): bump ubi8/ubi-minimal from 8.7 to 8.9

Bumps ubi8/ubi-minimal from 8.7 to 8.9.

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

Signed-off-by: dependabot[bot] <support@github.com>

Dockerfile.rpm

@@ -1,5 +1,5 @@
 # When you update this file substantially, please update build_your_own_images.md as well.
-FROM registry.access.redhat.com/ubi8/ubi-minimal:8.7@sha256:6910799b75ad41f00891978575a0d955be2f800c51b955af73926e7ab59a41c3
+FROM registry.access.redhat.com/ubi8/ubi-minimal:8.9@sha256:87bcbfedfd70e67aab3875fff103bade460aeff510033ebb36b7efa009ab6639
 
 LABEL maintainer="Kong Docker Maintainers <docker@konghq.com> (@team-gateway-bot)"