Merge pull request #640 from maxmind/dependabot/maven/org.apache.maven.plugins-maven-surefire-plugin-3.5.6

Bump org.apache.maven.plugins:maven-surefire-plugin from 3.5.5 to 3.5.6

Author: horgh

pom.xml

@@ -240,7 +240,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>3.5.5</version>
+                <version>3.5.6</version>
             </plugin>
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>