[exporter/loadbalancing] chore: update collector image in k8s-resolve…

…r example (#32682)

**Description:** <Describe what has changed.>
<!--Ex. Fixing a bug - Describe the bug and how this fixes the issue.
Ex. Adding a feature - Explain what this achieves.-->
Update collector image in k8s-resolver example
**Link to tracking Issue:** <Issue number if applicable>

**Testing:** <Describe what testing was performed and which tests were
added.>

**Documentation:** <Describe the documentation added.>

exporter/loadbalancingexporter/example/k8s-resolver/README.md

@@ -56,7 +56,7 @@ metadata:
   name: loadbalancer
   namespace: observability
 spec:
-  image: docker.io/jpkroehling/otelcol-with-k8sresolver:latest
+  image: docker.io/otel/opentelemetry-collector-contrib:latest
   serviceAccount: loadbalancer
   config: |
     receivers: