deps: update dependency com.google.cloud:google-iam-policy to v1.6.7 (#502)

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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)) | `1.6.6` -> `1.6.7` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-iam-policy/1.6.7/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-iam-policy/1.6.7/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-iam-policy/1.6.7/compatibility-slim/1.6.6)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-iam-policy/1.6.7/confidence-slim/1.6.6)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v1.6.7`](https://togithub.com/googleapis/java-iam/blob/HEAD/CHANGELOG.md#&#8203;167-httpsgithubcomgoogleapisjava-iamcomparev166v167-2022-10-31)

[Compare Source](https://togithub.com/googleapis/java-iam/compare/v1.6.6...v1.6.7)

##### Dependencies

-   Update dependency com.google.api:api-common to v2.2.2 ([#&#8203;497](https://togithub.com/googleapis/java-iam/issues/497)) ([0cb8ba7](https://togithub.com/googleapis/java-iam/commit/0cb8ba78d5c07b64570c65ce14d61db5f08150a8))
-   Update dependency com.google.cloud:google-iam-policy to v1.6.6 ([#&#8203;492](https://togithub.com/googleapis/java-iam/issues/492)) ([bad1c9b](https://togithub.com/googleapis/java-iam/commit/bad1c9b58c4a76017d3665a3ef0887c3481b35e8))
-   Update dependency com.google.http-client:google-http-client-jackson2 to v1.42.3 ([#&#8203;498](https://togithub.com/googleapis/java-iam/issues/498)) ([b68ed60](https://togithub.com/googleapis/java-iam/commit/b68ed601d723dd235dc21e28b22035860a04e6e0))
-   Update dependency com.google.protobuf:protobuf-bom to v3.21.9 ([#&#8203;495](https://togithub.com/googleapis/java-iam/issues/495)) ([2462317](https://togithub.com/googleapis/java-iam/commit/2462317d386a59d07a85c8a752371a09635aa86f))
-   Update dependency com.google.protobuf:protobuf-java to v3.21.9 ([#&#8203;493](https://togithub.com/googleapis/java-iam/issues/493)) ([160b427](https://togithub.com/googleapis/java-iam/commit/160b427f55f8f8ee4d27ba2c5d2d00664d088ff9))

</details>

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Author: renovate-bot

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

@@ -41,7 +41,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-iam-policy</artifactId>
-      <version>1.6.6</version>
+      <version>1.6.7</version>
       <scope>compile</scope>
     </dependency>
     <dependency>