Upgrade nikic/php-parser

For some reason a low version crashes Psalm.

composer.json

@@ -40,6 +40,7 @@
     "require-dev": {
         "doctrine/coding-standard": "^6.0",
         "jetbrains/phpstorm-stubs": "^2019.1",
+        "nikic/php-parser": "^4.4",
         "phpstan/phpstan": "^0.12",
         "phpunit/phpunit": "^8.4.1",
         "symfony/console": "^2.0.5|^3.0|^4.0|^5.0",

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "a0ee337c9500698eeb5d25f1e4a84b69",
+    "content-hash": "b7f970513c9756e5eaaba3974429c23c",
     "packages": [
         {
             "name": "doctrine/cache",
@@ -816,16 +816,16 @@
         },
         {
             "name": "nikic/php-parser",
-            "version": "v4.3.0",
+            "version": "v4.4.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/nikic/PHP-Parser.git",
-                "reference": "9a9981c347c5c49d6dfe5cf826bb882b824080dc"
+                "reference": "bd43ec7152eaaab3bd8c6d0aa95ceeb1df8ee120"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/9a9981c347c5c49d6dfe5cf826bb882b824080dc",
-                "reference": "9a9981c347c5c49d6dfe5cf826bb882b824080dc",
+                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/bd43ec7152eaaab3bd8c6d0aa95ceeb1df8ee120",
+                "reference": "bd43ec7152eaaab3bd8c6d0aa95ceeb1df8ee120",
                 "shasum": ""
             },
             "require": {
@@ -864,7 +864,7 @@
                 "parser",
                 "php"
             ],
-            "time": "2019-11-08T13:50:10+00:00"
+            "time": "2020-04-10T16:34:50+00:00"
         },
         {
             "name": "ocramius/package-versions",