Fix phpstan configuration, removing .dist

phpstan.neon

@@ -1,17 +1,7 @@
 parameters:
-    level: 8
+    level: 10
     paths:
         - src
         - tests
-    ignoreErrors:
-        - '#type has no value type specified in iterable type#'
-        - '#has parameter .* with no value type specified in iterable type#'
-        - '#has no value type specified in iterable type array#'
-        - '#configureOptions\(\) has no return type specified.#'
-        - '#configure\(\) has no return type specified#'
-        - '#process\(\) has no return type specified#'
-        - '#should return Iterator but returns Traversable#'
-        - '#Negated boolean expression is always false#'
-    reportUnmatchedIgnoredErrors: false
-    inferPrivatePropertyTypeFromConstructor: true
-    treatPhpDocTypesAsCertain: false
+    symfony:
+        containerXmlPath: var/cache/dev/App_KernelDevDebugContainer.xml