deps: update dependency com.google.cloud:google-cloud-monitoring to v3.81.0

Author: renovate-bot

benchmarks/pom.xml

@@ -59,7 +59,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-monitoring</artifactId>
-      <version>3.77.0</version>
+      <version>3.81.0</version>
     </dependency>
     <!-- OpenTelemetry test dependencies -->
     <dependency>

google-cloud-spanner/pom.xml

@@ -272,7 +272,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-monitoring</artifactId>
-      <version>3.77.0</version>
+      <version>3.81.0</version>
       <!-- Version will be managed by guava -->
       <exclusions>
         <exclusion>