refactor: update protobuf version (#115)

Author: aaron-steinfeld

hypertrace-core-graphql-platform/build.gradle.kts

@@ -22,7 +22,8 @@ dependencies {
     api("io.github.graphql-java:graphql-java-annotations:9.1")
     api("org.slf4j:slf4j-api:1.7.36")
     api("io.reactivex.rxjava3:rxjava:3.1.5")
-    api("com.google.protobuf:protobuf-java-util:3.21.1")
+    api("com.google.protobuf:protobuf-java-util:3.21.7")
+    api("com.google.protobuf:protobuf-java:3.21.7")
 
     api("org.projectlombok:lombok:1.18.24")
     api("com.google.code.findbugs:jsr305:3.0.2")