chore(deps): update grafana/grafana docker tag to v12.4.0 (#1913)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [grafana/grafana](https://redirect.github.com/grafana/grafana) | minor
| `12.3.3` → `12.4.0` |

---

### Release Notes

<details>
<summary>grafana/grafana (grafana/grafana)</summary>

###
[`v12.3.4`](https://redirect.github.com/grafana/grafana/compare/v12.3.3...v12.3.4)

[Compare
Source](https://redirect.github.com/grafana/grafana/compare/v12.3.3...v12.3.4)

</details>

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examples/example-custom-buckets/docker-compose.yaml

@@ -18,7 +18,7 @@ services:
       - --enable-feature=native-histograms
       - --config.file=/prometheus.yml
   grafana:
-    image: grafana/grafana:12.3.3@sha256:9e1e77ade304069aee3196e9a4f210830e96e80ce9a2640891eccc324b152faf
+    image: grafana/grafana:12.4.0@sha256:b0ae311af06228bcfd4a620504b653db80f5b91e94dc3dc2a5b7dab202bcde20
     network_mode: host
     volumes:
       - ./docker-compose/grafana-datasources.yaml:/etc/grafana/provisioning/datasources/grafana-datasources.yaml

examples/example-exemplars-tail-sampling/docker-compose.yaml

@@ -59,7 +59,7 @@ services:
     command:
       - --config.file=/config.yaml
   grafana:
-    image: grafana/grafana:12.3.3@sha256:9e1e77ade304069aee3196e9a4f210830e96e80ce9a2640891eccc324b152faf
+    image: grafana/grafana:12.4.0@sha256:b0ae311af06228bcfd4a620504b653db80f5b91e94dc3dc2a5b7dab202bcde20
     network_mode: host
     ports:
       - "3000:3000"

examples/example-native-histogram/docker-compose.yaml

@@ -18,7 +18,7 @@ services:
       - --enable-feature=native-histograms
       - --config.file=/prometheus.yml
   grafana:
-    image: grafana/grafana:12.3.3@sha256:9e1e77ade304069aee3196e9a4f210830e96e80ce9a2640891eccc324b152faf
+    image: grafana/grafana:12.4.0@sha256:b0ae311af06228bcfd4a620504b653db80f5b91e94dc3dc2a5b7dab202bcde20
     network_mode: host
     volumes:
       - ./docker-compose/grafana-datasources.yaml:/etc/grafana/provisioning/datasources/grafana-datasources.yaml