Fix scrutinizer test run

Author: denisvmedia

.scrutinizer.yml

@@ -20,7 +20,7 @@ build:
                             file: 'coverage.clover'
                             format: 'clover'
 before_commands:
-    - "composer install --prefer-source"
+    - "composer install --no-dev --prefer-source"
 
 tools:
     external_code_coverage: false

phpunit.xml.dist

@@ -13,7 +13,7 @@
 
     <testsuites>
         <testsuite name="Project Test Suite">
-            <directory>Tests</directory>
+            <directory>tests</directory>
         </testsuite>
     </testsuites>
 
@@ -23,7 +23,7 @@
             <exclude>
                 <directory>./vendor</directory>
                 <directory>./Resources</directory>
-                <directory>./Tests</directory>
+                <directory>./tests</directory>
             </exclude>
         </whitelist>
     </filter>