Bump ubi9/ubi-micro from 9.3-6 to 9.3-13 in /operator (#5233)

Dependabot couldn't find the original pull request head commit, f0f91eb.

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

Author: dependabot[bot]

operator/Dockerfile

@@ -18,7 +18,7 @@ COPY operator/main.go main.go
 # Build
 RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o manager main.go
 
-FROM registry.access.redhat.com/ubi9/ubi-micro:9.3-6
+FROM registry.access.redhat.com/ubi9/ubi-micro:9.3-13
 WORKDIR /
 COPY --from=builder /workspace/manager .
 USER 65532:65532