chore(deps): update dependency com.google.cloud:google-cloud-document-ai to v0.3.6 (#290)

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This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [com.google.cloud:google-cloud-document-ai](https://togithub.com/googleapis/java-document-ai) | patch | `0.3.5` -> `0.3.6` |

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### Release Notes

<details>
<summary>googleapis/java-document-ai</summary>

### [`v0.3.6`](https://togithub.com/googleapis/java-document-ai/blob/master/CHANGELOG.md#&#8203;036-httpswwwgithubcomgoogleapisjava-document-aicomparev035v036-2020-12-08)

[Compare Source](https://togithub.com/googleapis/java-document-ai/compare/v0.3.5...v0.3.6)

</details>

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Author: renovate-bot

samples/install-without-bom/pom.xml

@@ -29,7 +29,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-document-ai</artifactId>
-      <version>0.3.5</version>
+      <version>0.3.6</version>
     </dependency>
       <!-- [END documentai_install_without_bom] -->
     <dependency>

samples/snapshot/pom.xml

@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-document-ai</artifactId>
-      <version>0.3.5</version>
+      <version>0.3.6</version>
     </dependency>
 
     <dependency>

samples/snippets/pom.xml

@@ -41,7 +41,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-document-ai</artifactId>
-      <version>0.3.5</version>
+      <version>0.3.6</version>
     </dependency>
     <!-- [END documentai_install_with_bom] -->
     <dependency>