chore: Update config.json for devenv (#200)

devenv/sbtc/docker/config.json

@@ -1,10 +1,10 @@
 {
   "state_directory": "./state",
-  "mnemonic": "foster raise devote wear great volcano spring chapter among violin bleak syrup rent sphere coyote client govern spirit good risk cruise twice trick jealous",
+  "mnemonic": "twice kind fence tip hidden tilt action fragile skin nothing glory cousin green tomorrow spring wrist shed math olympic multiply hip blue scout claw",
   "stacks_network": "testnet",
   "bitcoin_network": "regtest",
   "stacks_node_url": "http://stacks-api:3999",
   "bitcoin_node_url": "http://devnet:devnet@bitcoin-explorer:3002/api",
   "electrum_node_url": "tcp://electrs:60401",
-  "contract_name": "sbtc-alpha-romeo-testing"
+  "contract_name": "asset"
 }