docs: fossterer signed the CLA in browseros-ai/BrowserOS#$pullRequestNo

Author: github-actions[bot]

signatures/version1/cla.json

@@ -87,6 +87,14 @@
       "created_at": "2025-12-03T09:23:21Z",
       "repoId": 985839104,
       "pullRequestNo": 212
+    },
+    {
+      "name": "fossterer",
+      "id": 4236021,
+      "comment_id": 3619533827,
+      "created_at": "2025-12-06T05:28:01Z",
+      "repoId": 985839104,
+      "pullRequestNo": 220
     }
   ]
 }