fix(deps): update dependency io.grpc:grpc-bom to v1.51.1 (#1137)

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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) | `1.51.0` -> `1.51.1` | [![age](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-bom/1.51.1/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-bom/1.51.1/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-bom/1.51.1/compatibility-slim/1.51.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/io.grpc:grpc-bom/1.51.1/confidence-slim/1.51.0)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v1.51.1`](https://togithub.com/grpc/grpc-java/releases/tag/v1.51.1)

[Compare Source](https://togithub.com/grpc/grpc-java/compare/v1.51.0...v1.51.1)

##### Bug Fixes

-   xds: Fix ConcurrentModificationException in PriorityLoadBalancer. ([#&#8203;9744](https://togithub.com/grpc/grpc-java/issues/9744))

</details>

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gapic-generator-java/pom.xml

@@ -14,7 +14,7 @@
     <!-- Should be in sync with repositories.bzl -->
     <googleapis.commit>44d6bef0ca6db8bba3fb324c8186e694bcc4829c</googleapis.commit>
     <gax.version>2.20.1</gax.version>
-    <grpc.version>1.51.0</grpc.version>
+    <grpc.version>1.51.1</grpc.version>
     <protobuf.version>3.21.10</protobuf.version>
     <auto-value.version>1.10.1</auto-value.version>
     <maven.compiler.source>1.8</maven.compiler.source>

java-common-protos/pom.xml

@@ -66,7 +66,7 @@
     <site.installationModule>google-iam-parent</site.installationModule>
     <protobuf.version>3.21.9</protobuf.version>
     <junit.version>4.13.2</junit.version>
-    <grpc.version>1.51.0</grpc.version>
+    <grpc.version>1.51.1</grpc.version>
     <guava.version>31.1-jre</guava.version>
   </properties>