[Updated] Install EXT:ns_youtube via Composer

composer.json

@@ -66,7 +66,8 @@
     "helhum/typo3-secure-web": "^0.2.8",
     "t3o/t3org_layout": "@dev",
     "t3o/t3o_donation": "@dev",
-    "mabahe/typo3-core-redirects": "^8.7"
+    "mabahe/typo3-core-redirects": "^8.7",
+    "nitsan/ns-youtube": "^1.1",
   },
   "require-dev": {
     "ichhabrecht/filefill": "^2.0"