deps: update grpc dependencies to v1.66.0 (#3104)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [io.grpc:grpc-core](https://togithub.com/grpc/grpc-java) | `1.65.1` ->
`1.66.0` |
[![age](https://developer.mend.io/api/mc/badges/age/maven/io.grpc:grpc-core/1.66.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/io.grpc:grpc-core/1.66.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/io.grpc:grpc-core/1.65.1/1.66.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
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|
| [io.grpc:grpc-bom](https://togithub.com/grpc/grpc-java) | `1.65.1` ->
`1.66.0` |
[![age](https://developer.mend.io/api/mc/badges/age/maven/io.grpc:grpc-bom/1.66.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
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|
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|
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|

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Release Notes

<details>
<summary>grpc/grpc-java (io.grpc:grpc-core)</summary>

###
[`v1.66.0`](https://togithub.com/grpc/grpc-java/compare/v1.65.1...v1.66.0)

</details>

---

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.cloudbuild/library_generation/library_generation.Dockerfile

@@ -19,7 +19,7 @@ SHELL [ "/bin/bash", "-c" ]
 
 ARG OWLBOT_CLI_COMMITTISH=ac84fa5c423a0069bbce3d2d869c9730c8fdf550
 ARG PROTOC_VERSION=25.4
-ARG GRPC_VERSION=1.65.1
+ARG GRPC_VERSION=1.66.0
 ENV HOME=/home
 ENV OS_ARCHITECTURE="linux-x86_64"
 

gapic-generator-java-pom-parent/pom.xml

@@ -26,7 +26,7 @@
     <!-- External dependencies, especially gRPC and Protobuf version, should be
         consistent across modules in this repository -->
     <javax.annotation-api.version>1.3.2</javax.annotation-api.version>
-    <grpc.version>1.65.1</grpc.version>
+    <grpc.version>1.66.0</grpc.version>
     <google.auth.version>1.24.1</google.auth.version>
     <google.http-client.version>1.44.2</google.http-client.version>
     <gson.version>2.11.0</gson.version>

gax-java/dependencies.properties

@@ -28,7 +28,7 @@ version.gax_httpjson=2.51.1-SNAPSHOT
 
 version.com_google_protobuf=3.25.4
 version.google_java_format=1.15.0
-version.io_grpc=1.65.1
+version.io_grpc=1.66.0
 
 # Maven artifacts.
 # Note, the actual name of each property matters (bazel build scripts depend on it).