deps: update dependency com.google.cloud:grpc-gcp to v1.3.1 (#884)

[![Mend Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:grpc-gcp](https://togithub.com/GoogleCloudPlatform/grpc-gcp-java/tree/master/grpc-gcp) ([source](https://togithub.com/GoogleCloudPlatform/grpc-gcp-java)) | `1.3.0` -> `1.3.1` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:grpc-gcp/1.3.1/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:grpc-gcp/1.3.1/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:grpc-gcp/1.3.1/compatibility-slim/1.3.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:grpc-gcp/1.3.1/confidence-slim/1.3.0)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>GoogleCloudPlatform/grpc-gcp-java</summary>

### [`v1.3.1`](https://togithub.com/GoogleCloudPlatform/grpc-gcp-java/compare/v1.3.0...v1.3.1)

[Compare Source](https://togithub.com/GoogleCloudPlatform/grpc-gcp-java/compare/v1.3.0...v1.3.1)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, click this checkbox.

---

This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://app.renovatebot.com/dashboard#github/googleapis/java-shared-dependencies).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzMi4yNDEuMTEiLCJ1cGRhdGVkSW5WZXIiOiIzMi4yNDEuMTEifQ==-->

Author: renovate-bot

java-shared-dependencies/first-party-dependencies/pom.xml

@@ -57,7 +57,7 @@
     <site.installationModule>${project.artifactId}</site.installationModule>
     <grpc.version>1.50.1</grpc.version>
     <gax.version>2.19.4</gax.version>
-    <grpc-gcp.version>1.3.0</grpc-gcp.version>
+    <grpc-gcp.version>1.3.1</grpc-gcp.version>
     <gson.version>2.10</gson.version>
     <guava.version>31.1-jre</guava.version>
     <protobuf.version>3.21.8</protobuf.version>