deps: update dependency com.google.cloud:google-cloud-monitoring-bom to v3.16.0 (#1712)

Author: renovate-bot

google-cloud-bigtable-deps-bom/pom.xml

@@ -73,7 +73,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-monitoring-bom</artifactId>
-        <version>3.15.0</version>
+        <version>3.16.0</version>
         <exclusions>
           <exclusion>
             <!-- using the perfmark version in opencensus -->