Enhancement: Enable no_mixed_echo_print fixer

Author: localheinz

.php-cs-fixer.php

@@ -24,7 +24,6 @@
         'array_syntax' => true,
         'binary_operator_spaces' => true,
         'class_attributes_separation' => true,
-        'class_definition' => true,
         'concat_space' => [
             'spacing' => 'one',
         ],
@@ -38,6 +37,7 @@
         'line_ending' => true,
         'new_with_parentheses' => true,
         'no_extra_blank_lines' => true,
+        'no_mixed_echo_print' => true,
         'no_trailing_whitespace' => true,
         'ordered_class_elements' => true,
         'random_api_migration' => true,