deps: update dependency com.google.cloud.tools:dependencies to v1.5.2 (#874)
deps: update dependency com.google.cloud.tools:dependencies to v1.5.2 (#874)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [com.google.cloud.tools:dependencies](https://togithub.com/GoogleCloudPlatform/cloud-opensource-java) | patch | `1.5.1` -> `1.5.2` |

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### Release Notes

<details>
<summary>GoogleCloudPlatform/cloud-opensource-java</summary>

### [`v1.5.2`](https://togithub.com/GoogleCloudPlatform/cloud-opensource-java/blob/master/CHANGELOG.md#&#8203;152)

-   Linkage Checker enforcer rule works with other repositories than Maven Central.

</details>

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