Move phpstan config file for cleaner root.

.ci/phpstan.neon

@@ -0,0 +1,19 @@
+includes:
+  - ../vendor/nunomaduro/larastan/extension.neon
+  - ../vendor/ergebnis/phpstan-rules/rules.neon
+  - ../vendor/phpstan/phpstan-deprecation-rules/rules.neon
+  - ../vendor/thecodingmachine/phpstan-strict-rules/phpstan-strict-rules.neon
+
+parameters:
+
+  paths:
+    - ../app
+    - ../config
+    - ../database
+    - ../resources
+    - ../routes
+    - ../tests
+    - ../bootstrap/app.php
+
+  # The level 8 is the highest level
+  level: 5