Fixed source tar url

tomcat8.spec.template

@@ -7,7 +7,7 @@ Summary:          Apache Servlet/JSP Engine, RI for Servlet 3.1/JSP 2.3 API
 Group:            System Environment/Daemons
 License:          ASL 2.0
 URL:              http://tomcat.apache.org/
-Source0:          https://www-us.apache.org/dist/tomcat/tomcat-8/v%{version}/bin/apache-tomcat-%{version}.tar.gz
+Source0:          https://www.apache.org/dist/tomcat/tomcat-8/v%{version}/bin/apache-tomcat-%{version}.tar.gz
 Source1:          tomcat8.conf
 Source2:          tomcat8.service
 Source3:          tomcat8.logrotate