Fix webhook network enum formatting (#896)

Author: lsqproduction

src/openapi/notify/notify.yaml

@@ -588,13 +588,13 @@ components:
         - ETH_MAINNET
         - ETH_SEPOLIA
         - ETH_HOLESKY
-        - ARBMAINNET
-        - ARBSEPOLIA
+        - ARB_MAINNET
+        - ARB_SEPOLIA
         - ARBNOVA_MAINNET
-        - MATICMAINNET
-        - MATICMUMBAI
-        - OPTMAINNET
-        - OPTGOERLI
+        - MATIC_MAINNET
+        - MATIC_MUMBAI
+        - OPT_MAINNET
+        - OPT_GOERLI
         - BASE_MAINNET
         - BASE_SEPOLIA
         - ZKSYNC_MAINNET