deps: update dependency com.google.cloud:google-iam-policy to v1.6.13 (…

…#532)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-iam-policy](https://togithub.com/googleapis/java-eventarc) ([source](https://togithub.com/googleapis/java-iam)) | `1.6.12` -> `1.6.13` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-iam-policy/1.6.13/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-iam-policy/1.6.13/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-iam-policy/1.6.13/compatibility-slim/1.6.12)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-iam-policy/1.6.13/confidence-slim/1.6.12)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v1.6.13`](https://togithub.com/googleapis/java-iam/blob/HEAD/CHANGELOG.md#&#8203;1613-httpsgithubcomgoogleapisjava-iamcomparev1612v1613-2022-11-17)

[Compare Source](https://togithub.com/googleapis/java-iam/compare/v1.6.12...v1.6.13)

##### Dependencies

-   Update dependency com.google.cloud:google-iam-policy to v1.6.12 ([#&#8203;526](https://togithub.com/googleapis/java-iam/issues/526)) ([71cfca7](https://togithub.com/googleapis/java-iam/commit/71cfca72a007a0ff2471b3a4850fe01d79a2df16))
-   Update dependency io.grpc:grpc-protobuf to v1.51.0 ([#&#8203;527](https://togithub.com/googleapis/java-iam/issues/527)) ([f9f7aba](https://togithub.com/googleapis/java-iam/commit/f9f7aba79e5f22b0691db7eb51e388035860e2f2))
-   Update dependency io.grpc:grpc-stub to v1.51.0 ([#&#8203;528](https://togithub.com/googleapis/java-iam/issues/528)) ([639ee38](https://togithub.com/googleapis/java-iam/commit/639ee382a7adba44a3b0c8b5dc93842a8dfc225b))

</details>

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java-iam/samples/cloud-client/snippets/pom.xml

@@ -41,7 +41,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-iam-policy</artifactId>
-      <version>1.6.12</version>
+      <version>1.6.13</version>
       <scope>compile</scope>
     </dependency>
     <dependency>