validate -> verify

pom.xml

@@ -260,7 +260,7 @@
                         <goals>
                             <goal>check</goal>
                         </goals>
-                        <phase>validate</phase>
+                        <phase>verify</phase>
                     </execution>
                 </executions>
                 <configuration>
@@ -270,7 +270,6 @@
                         <!-- see https://github.com/ec4j/editorconfig-linters/blob/master/editorconfig-lint-api/src/main/java/org/ec4j/lint/api/Constants.java#L37 -->
                         <!-- You can exclude further files from processing: -->
                         <exclude>**/*.txt</exclude>
-                        <exclude>**/.flattened-pom.xml</exclude>
                     </excludes>
                     <!-- All files are included by default:
                     <includes>