fix(deps): update dependency nodebb-plugin-composer-default to v6.4.8 (#9017)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

install/package.json

@@ -93,7 +93,7 @@
         "@nodebb/mubsub": "1.7.1",
         "@nodebb/socket.io-adapter-mongo": "3.1.1",
         "nconf": "^0.11.0",
-        "nodebb-plugin-composer-default": "6.4.7",
+        "nodebb-plugin-composer-default": "6.4.8",
         "nodebb-plugin-dbsearch": "4.1.2",
         "nodebb-plugin-emoji": "^3.3.0",
         "nodebb-plugin-emoji-android": "2.0.0",