Refactor: Align phpunit.xml usage, update .gitattributes export rules, and adjust .gitignore

Author: lloricode

.gitattributes

@@ -5,12 +5,11 @@
 /.gitattributes     export-ignore
 /.gitignore         export-ignore
 /.travis.yml        export-ignore
-/phpunit.xml.dist   export-ignore
+/phpunit.xml   export-ignore
 /tests              export-ignore
 /.editorconfig      export-ignore
 /.php_cs            export-ignore
 /.github            export-ignore
-/phpstan.neon.dist  export-ignore
 /CHANGELOG.md       export-ignore
 /rector.php         export-ignore
 /pint.json          export-ignore

.gitignore

@@ -6,7 +6,6 @@ build
 composer.lock
 coverage
 docs
-phpunit.xml
 psalm.xml
 vendor
 .php-cs-fixer.cache

.run/test all.run.xml

@@ -1,6 +1,6 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="test all" type="PestRunConfigurationType">
-    <PestRunner directory="$PROJECT_DIR$/tests" method="" />
+    <PestRunner configuration_file="$PROJECT_DIR$/phpunit.xml" directory="$PROJECT_DIR$/tests" method="" scope="ConfigurationFile" use_alternative_configuration_file="true" />
     <method v="2" />
   </configuration>
 </component>