chore(deps): update dependency com.google.cloud:google-cloud-datacatalog to v0.34.0 (GoogleCloudPlatform#2539)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [com.google.cloud:google-cloud-datacatalog](https://togithub.com/googleapis/java-datacatalog) | minor | `0.33.0` -> `0.34.0` |

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### Release Notes

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

### [`v0.34.0`](https://togithub.com/googleapis/java-datacatalog/blob/master/CHANGELOG.md#&#8203;0340-httpswwwgithubcomgoogleapisjava-datacatalogcomparev0330v0340-2020-03-31)

[Compare Source](https://togithub.com/googleapis/java-datacatalog/compare/v0.33.0...v0.34.0)

##### Features

-   **v1:** add v1 client ([#&GoogleCloudPlatform#8203;131](https://www.github.com/googleapis/java-datacatalog/issues/131)) ([115d82b](https://www.github.com/googleapis/java-datacatalog/commit/115d82bd9f49c5bb8582a738bfd3cf8af38e15a8))

##### Dependencies

-   update dependency com.google.api:api-common to v1.9.0 ([#&GoogleCloudPlatform#8203;129](https://www.github.com/googleapis/java-datacatalog/issues/129)) ([e832dac](https://www.github.com/googleapis/java-datacatalog/commit/e832dac064d43461e452f4b020adf20d57f510ea))

</details>

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datacatalog/cloud-client/pom.xml

@@ -39,7 +39,7 @@
         <dependency>
             <groupId>com.google.cloud</groupId>
             <artifactId>google-cloud-datacatalog</artifactId>
-            <version>0.33.0</version>
+            <version>0.34.0</version>
         </dependency>
 
         <!-- Test dependencies -->

datacatalog/quickstart/pom.xml

@@ -39,7 +39,7 @@
         <dependency>
             <groupId>com.google.cloud</groupId>
             <artifactId>google-cloud-datacatalog</artifactId>
-            <version>0.33.0</version>
+            <version>0.34.0</version>
         </dependency>
 
         <!-- Test dependencies -->