use local phpunit.xsd

Author: Tobion

phpunit.xml

@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/7.5/phpunit.xsd"
-    beStrictAboutTestsThatDoNotTestAnything = "true"
+    xsi:noNamespaceSchemaLocation="vendor/bin/.phpunit/phpunit.xsd"
     beStrictAboutOutputDuringTests          = "true"
     colors                                  = "true"
     verbose                                 = "true"