fix:fix configLocation url

Signed-off-by: wayne <oak.wayne@qq.com>

Author: wayne-pq

pom.xml

@@ -224,7 +224,7 @@
                 <artifactId>maven-checkstyle-plugin</artifactId>
                 <configuration>
                     <configLocation>
-                        https://raw.githubusercontent.com/checkstyle/checkstyle/master/src/main/resources/google_checks.xmll
+                        https://raw.githubusercontent.com/checkstyle/checkstyle/master/src/main/resources/google_checks.xml
                     </configLocation>
                     <consoleOutput>true</consoleOutput>
                     <failsOnError>true</failsOnError>