deps: update dependency io.grpc:grpc-bom to v1.42.1 (#264)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [io.grpc:grpc-bom](https://togithub.com/grpc/grpc-java) | `1.42.0` -> `1.42.1` | [![age](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-bom/1.42.1/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-bom/1.42.1/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-bom/1.42.1/compatibility-slim/1.42.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-bom/1.42.1/confidence-slim/1.42.0)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v1.42.1`](https://togithub.com/grpc/grpc-java/compare/v1.42.0...v1.42.1)

[Compare Source](https://togithub.com/grpc/grpc-java/compare/v1.42.0...v1.42.1)

</details>

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Author: renovate-bot

pom.xml

@@ -65,7 +65,7 @@
     <site.installationModule>google-iam-parent</site.installationModule>
     <protobuf.version>3.18.1</protobuf.version>
     <junit.version>4.13.2</junit.version>
-    <grpc.version>1.42.0</grpc.version>
+    <grpc.version>1.42.1</grpc.version>
     <guava.version>31.0.1-android</guava.version>
   </properties>