build(composer): We don't need to require doctrine/instantiator explicitely anymore

Since c2325224

composer.json

@@ -22,7 +22,6 @@
     "symfony/var-dumper": "~3.4.1",
     "squizlabs/php_codesniffer": "~3.4.0",
     "phpunit/phpunit": "~6.5.2",
-    "doctrine/instantiator": "~1.0.0",
     "ffmpeg/ffmpeg": "^4.1",
     "rg3/youtube-dl": "^2019.09",
     "heroku/heroku-buildpack-php": "^162.0",

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": "c55d75b41a6cb8d56734f5266508049d",
+    "content-hash": "33493e464172695368aaecf1f8e4e563",
     "packages": [
         {
             "name": "aura/session",