fix(deps): update dependency yjs to ^13.6.31

Author: renovate[bot]

package-lock.json

@@ -103,7 +103,7 @@
     "webdav": "^5.9.0",
     "y-prosemirror": "^1.3.7",
     "y-protocols": "^1.0.7",
-    "yjs": "^13.6.30"
+    "yjs": "^13.6.31"
   },
   "devDependencies": {
     "@nextcloud/babel-config": "^1.3.0",