chore(solana): use chain_id 1 for mainnet

Author: xenoliss

solana/mainnet/2025-10-27-deploy-mcm/.env

@@ -18,7 +18,7 @@ MCM_DEPLOY_SIGNATURE=
 MCM_PROGRAM_ID=Ea5qsVs2kwQXi7LMAh3Qg5YKpuPQbW7oqvYaPXUwBwoX # Same as devnet
 MCM_MULTISIG_ID_0=0x0000000000000000000000000000000000000000000000000000000000000000
 MCM_MULTISIG_ID_1=0x0000000000000000000000000000000000000000000000000000000000000001
-MCM_CHAIN_ID=0
+MCM_CHAIN_ID=1
 MCM_AUTHORITY_0=
 MCM_AUTHORITY_1=
 MCM_MULTISIG_INIT_ARTIFACT_0=artifacts/mcm-multisig-init-0.json