Update grpc-java to v1.68.0

build.gradle

@@ -57,7 +57,7 @@ protobuf {
     }
     plugins {
         grpc {
-            artifact = 'io.grpc:protoc-gen-grpc-java:1.66.0'
+            artifact = 'io.grpc:protoc-gen-grpc-java:1.68.0'
         }
     }
     generateProtoTasks {
@@ -79,13 +79,13 @@ dependencies {
     implementation 'com.google.protobuf:protobuf-java:3.25.5'
     implementation 'com.google.protobuf:protobuf-java-util:3.25.5'
     implementation 'com.google.guava:guava:33.3.0-jre'
-    implementation "io.grpc:grpc-core:1.66.0"
-    implementation "io.grpc:grpc-stub:1.66.0"
-    implementation "io.grpc:grpc-netty-shaded:1.66.0"
+    implementation "io.grpc:grpc-core:1.68.0"
+    implementation "io.grpc:grpc-stub:1.68.0"
+    implementation "io.grpc:grpc-netty-shaded:1.68.0"
     implementation fileTree(dir: LOGSTASH_CORE_PATH, include: "**/logstash-core-?.*.*.jar")
 
     testImplementation 'junit:junit:4.13.2'
-    testImplementation "io.grpc:grpc-protobuf:1.66.0"
+    testImplementation "io.grpc:grpc-protobuf:1.68.0"
     testImplementation "javax.annotation:javax.annotation-api:1.3.2"
     testImplementation "org.jetbrains.kotlin:kotlin-script-runtime:$kotlin_version"
 }