build: add a testnet environment

Add a script to build using the testnet environment
Using the testnet script when releasing to testnet
Add the testnet configuration

.env.testnet

@@ -0,0 +1,11 @@
+REACT_APP_CONTRACTS_RELAY_HUB=0x506140D6c5D59B5985565E3f865fEDDF514827f4
+REACT_APP_CONTRACTS_DEPLOY_VERIFIER=0xB5B4dEbDa08A8328D00bc860441fCD170cED0092
+REACT_APP_CONTRACTS_RELAY_VERIFIER=0x7Db1495dF38eAb769C49b6A5066546404596650D
+REACT_APP_CONTRACTS_SMART_WALLET_FACTORY=0x4eD1a9afc136cd11176096fb415FF74874091bdC
+REACT_APP_CONTRACTS_SMART_WALLET=0xd6E2D2D00c2a28d39126244f7f461b2077AA2172
+
+REACT_APP_RIF_RELAY_CHAIN_ID=31
+REACT_APP_RIF_RELAY_GAS_PRICE_FACTOR_PERCENT=0
+REACT_APP_RIF_RELAY_LOOKUP_WINDOW_BLOCKS=1e5
+REACT_APP_RIF_RELAY_PREFERRED_RELAYS=https://dev.relay.rifcomputing.net:8090
+REACT_APP_BLOCK_EXPLORER=https://explorer.testnet.rsk.co

.github/workflows/deploy-testnet.yml

@@ -32,7 +32,7 @@ jobs:
 
     - name: Build site
       run: |
-        npm run build
+        npm run build:testnet
 
     - name: Deploy site to S3
       run: |

package.json

@@ -29,6 +29,7 @@
     "start": "react-scripts start",
     "build": "GENERATE_SOURCEMAP=false react-scripts build",
     "build:qa": "bash scripts/cli-process-env.sh 'qa' && npm run build",
+    "build:testnet": "bash scripts/cli-process-env.sh 'testnet' && npm run build",
     "test": "react-scripts test",
     "eject": "react-scripts eject",
     "lint": "eslint --ext .ts --ext .tsx .",