maint(deps): bump io.grpc:grpc-netty-shaded from 1.56.0 to 1.66.0

Bumps [io.grpc:grpc-netty-shaded](https://github.com/grpc/grpc-java) from 1.56.0 to 1.66.0.
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.56.0...v1.66.0)

---
updated-dependencies:
- dependency-name: io.grpc:grpc-netty-shaded
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

sdk/build.gradle

@@ -14,7 +14,7 @@ dependencies {
     implementation "io.opentelemetry:opentelemetry-exporter-otlp:${versions.opentelemetry}"
     implementation "io.opentelemetry.instrumentation:opentelemetry-resources:${versions.opentelemetryJavaagentAlpha}"
 
-    implementation 'io.grpc:grpc-netty-shaded:1.56.0'
+    implementation 'io.grpc:grpc-netty-shaded:1.66.0'
     implementation 'com.google.code.findbugs:jsr305:3.0.2'
     implementation 'com.google.guava:guava:31.1-jre'
     implementation 'org.apache.commons:commons-lang3:3.12.0'