chore(legal): cla cleanup

Signed-off-by: Carlos Alexandro Becker <[email protected]>

.github/cla-signatures.json

@@ -1,12 +0,0 @@
-{
-  "signedContributors": [
-    {
-      "name": "caarlos0",
-      "id": 245435,
-      "comment_id": 3133262377,
-      "created_at": "2025-07-29T16:36:11Z",
-      "repoId": 987670088,
-      "pullRequestNo": 331
-    }
-  ]
-}