Update Pubsub and Cloud Trace libraries.

Author: armiol

stackdriver-trace/build.gradle.kts

@@ -26,6 +26,19 @@
 
 val cloudTraceVersion: String by extra
 
+val grpcVersion = "1.46.0"
+val googleOauth2Version = "1.7.0"
+
 dependencies {
     api("com.google.cloud:google-cloud-trace:$cloudTraceVersion")
+
+    /**
+     * The following libraries are the dependencies of the most recent `google-cloud-trace`.
+     *
+     * However, for some reason, they aren't available via `compileClasspath` as previously.
+     * The tests heavily rely onto these libraries, therefore they are added ad-hoc.
+     */
+    testImplementation("com.google.auth:google-auth-library-oauth2-http:$googleOauth2Version")
+    testImplementation("io.grpc:grpc-core:$grpcVersion")
+    testImplementation("io.grpc:grpc-auth:$grpcVersion")
 }

stackdriver-trace/src/main/java/io/spine/server/trace/stackdriver/StackdriverTracer.java

@@ -34,9 +34,9 @@
 import io.spine.server.trace.AbstractTracer;
 import io.spine.system.server.EntityTypeName;
 
+import java.util.ArrayList;
 import java.util.List;
 
-import static com.google.api.client.util.Lists.newArrayList;
 import static com.google.common.base.Preconditions.checkNotNull;
 import static java.util.Collections.synchronizedList;
 
@@ -60,7 +60,7 @@ protected StackdriverTracer(Signal<?, ?, ?> signal,
         this.traceService = checkNotNull(traceService);
         this.projectId = checkNotNull(gcpProjectId);
         this.context = checkNotNull(context);
-        this.spans = synchronizedList(newArrayList());
+        this.spans = synchronizedList(new ArrayList<>());
     }
 
     @Override

version.gradle.kts

@@ -32,8 +32,8 @@
  */
 
 val cloudDatastoreVersion: String by extra("2.8.0")
-val cloudPubsubV1Version: String by extra("1.92.1")
-val cloudTraceVersion: String by extra("1.2.8")
+val cloudPubsubV1Version: String by extra("1.101.1")
+val cloudTraceVersion: String by extra("2.2.0")
 
 val spineBaseVersion: String by extra("1.8.2")
 val spineCoreVersion: String by extra("1.8.2")