build(deps): update dependency org.apache.maven.plugins:maven-plugin-plugin to v3.15.1

Author: renovate-bot

bigtable-test/bigtable-build-helper/pom.xml

@@ -74,7 +74,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-plugin-plugin</artifactId>
-          <version>3.10.2</version>
+          <version>3.15.1</version>
         </plugin>
 
         <!-- Start Skip publishing -->

bigtable-test/bigtable-emulator-maven-plugin/pom.xml

@@ -50,7 +50,7 @@ limitations under the License.
     <plugins>
       <plugin>
         <artifactId>maven-plugin-plugin</artifactId>
-        <version>3.10.2</version>
+        <version>3.15.1</version>
         <executions>
           <execution>
             <id>mojo-descriptor</id>