Update Linguist languages.yml to latest upstream

Author: github-actions[bot]

config/languages.yml

@@ -6278,6 +6278,14 @@ QuickBASIC:
   codemirror_mode: vb
   codemirror_mime_type: text/x-vb
   language_id: 593107205
+Quint:
+  type: programming
+  color: "#9d6ce5"
+  extensions:
+  - ".qnt"
+  tm_scope: source.quint
+  ace_mode: text
+  language_id: 562056483
 R:
   type: programming
   color: "#198CE7"