chore(deps): update otel/opentelemetry-collector-contrib docker tag to v0.138.0 (#1636)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[otel/opentelemetry-collector-contrib](https://redirect.github.com/open-telemetry/opentelemetry-collector-releases)
| minor | `0.137.0` -> `0.138.0` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>open-telemetry/opentelemetry-collector-releases
(otel/opentelemetry-collector-contrib)</summary>

###
[`v0.138.0`](https://redirect.github.com/open-telemetry/opentelemetry-collector-releases/blob/HEAD/CHANGELOG.md#v01380)

[Compare
Source](https://redirect.github.com/open-telemetry/opentelemetry-collector-releases/compare/v0.137.0...v0.138.0)

##### 🚀 New components 🚀

- `unrollprocessor`: Adds the unroll processor to the Contrib
distribution
([#&#8203;1189](https://redirect.github.com/open-telemetry/opentelemetry-collector-releases/issues/1189))

##### 💡 Enhancements 💡

- `packaging`: Allow in-place upgrades for Windows MSI installations
([#&#8203;1197](https://redirect.github.com/open-telemetry/opentelemetry-collector-releases/issues/1197))

</details>

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

@@ -36,7 +36,7 @@ services:
       - -jar
       - /example-greeting-service.jar
   collector:
-    image: otel/opentelemetry-collector-contrib:0.137.0@sha256:886722fe0f37af9d1fe24d29529253ec59fbf263b3b1df4facaf221373e19d23
+    image: otel/opentelemetry-collector-contrib:0.138.0@sha256:4a951ff0a9772f4fa8e9c7a326434370301b98b2b813933468dcb54aa6a6b5e5
     network_mode: host
     volumes:
       - ./config/otelcol-config.yaml:/config.yaml

examples/example-exporter-opentelemetry/docker-compose.yaml

@@ -13,7 +13,7 @@ services:
       #- -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=*:5005
       - /example-exporter-opentelemetry.jar
   collector:
-    image: otel/opentelemetry-collector-contrib:0.137.0@sha256:886722fe0f37af9d1fe24d29529253ec59fbf263b3b1df4facaf221373e19d23
+    image: otel/opentelemetry-collector-contrib:0.138.0@sha256:4a951ff0a9772f4fa8e9c7a326434370301b98b2b813933468dcb54aa6a6b5e5
     network_mode: host
     volumes:
       - ./config/otelcol-config.yaml:/config.yaml