Bump ubi9/ubi-minimal from 9.6 to 9.7 in /images/helm-operator

Bumps ubi9/ubi-minimal from 9.6 to 9.7.

---
updated-dependencies:
- dependency-name: ubi9/ubi-minimal
  dependency-version: '9.7'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

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/ubi9/ubi-minimal:9.6
+FROM registry.access.redhat.com/ubi9/ubi-minimal:9.7
 
 ENV HOME=/opt/helm \
     USER_NAME=helm \