deps: update dependency com.google.cloud:google-cloud-trace to v2.16.0 (#2407)

Author: renovate-bot

samples/install-without-bom/pom.xml

@@ -22,7 +22,7 @@
     <maven.compiler.source>1.8</maven.compiler.source>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <opencensus.version>0.31.1</opencensus.version>
-    <trace.version>2.15.0</trace.version>
+    <trace.version>2.16.0</trace.version>
     <cloudmonitoring.version>3.17.0</cloudmonitoring.version>
   </properties>
 

samples/snapshot/pom.xml

@@ -22,7 +22,7 @@
     <maven.compiler.source>1.8</maven.compiler.source>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <opencensus.version>0.31.1</opencensus.version>
-    <trace.version>2.15.0</trace.version>
+    <trace.version>2.16.0</trace.version>
     <cloudmonitoring.version>3.17.0</cloudmonitoring.version>
   </properties>