Add owner

Author: MauroToscano

contracts/script/deploy/config/mainnet_staging/batcher-payment-service.mainnet.config.json

@@ -8,7 +8,7 @@
     "gasPerProof": "21000"
   },
   "permissions": {
-    "owner": "<owner_address>"
+    "owner": "0x2106AC6FE9599f8A0710643C75661aaf8d8B1599"
   },
   "eip712": {
     "noncedVerificationDataTypeHash": "0x41817b5c5b0c3dcda70ccb43ba175fdcd7e586f9e0484422a2c6bba678fdf4a3"