fix: update dependency @codemirror/language to ^6.12.1

Author: renovate[bot]

package-lock.json

@@ -35,7 +35,7 @@
     "@codemirror/lang-javascript": "^6.2.4",
     "@codemirror/lang-json": "^6.0.2",
     "@codemirror/lang-markdown": "^6.5.0",
-    "@codemirror/language": "^6.11.3",
+    "@codemirror/language": "^6.12.1",
     "@eslint/css": "^0.14.1",
     "@eslint/js": "^9.39.2",
     "@eslint/json": "^0.14.0",