Upgrade Modernizer Maven Plugin 2.6.0 -> 2.7.0 (#801)

See:
- https://github.com/gaul/modernizer-maven-plugin/releases/tag/modernizer-maven-plugin-2.7.0
- gaul/modernizer-maven-plugin@modernizer-maven-plugin-2.6.0...modernizer-maven-plugin-2.7.0

pom.xml

@@ -1318,7 +1318,7 @@
                 <plugin>
                     <groupId>org.gaul</groupId>
                     <artifactId>modernizer-maven-plugin</artifactId>
-                    <version>2.6.0</version>
+                    <version>2.7.0</version>
                     <configuration>
                         <exclusionPatterns>
                             <!-- The plugin suggests replacing usages of