chore(deps): update dependency com.google.cloud:google-cloud-dataproc to v1.1.5 (#352)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [com.google.cloud:google-cloud-dataproc](https://togithub.com/googleapis/java-dataproc) | patch | `1.1.4` -> `1.1.5` |

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### Release Notes

<details>
<summary>googleapis/java-dataproc</summary>

### [`v1.1.5`](https://togithub.com/googleapis/java-dataproc/blob/master/CHANGELOG.md#&#8203;115-httpswwwgithubcomgoogleapisjava-dataproccomparev114v115-2020-10-28)

[Compare Source](https://togithub.com/googleapis/java-dataproc/compare/v1.1.4...v1.1.5)

</details>

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samples/install-without-bom/pom.xml

@@ -29,7 +29,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-dataproc</artifactId>
-      <version>1.1.4</version>
+      <version>1.1.5</version>
     </dependency>
     <!-- [END dataproc_install_without_bom] -->
     <dependency>