chore: change arby default pair to BTC/USDT (#681)

* change arby default pair to btc/usdt

* fix: revert testnet to ETH/BTC

* fix: karl review - change arby pair in arby.py

Author: kilrau

images/utils/launcher/config/mainnet.conf

@@ -122,8 +122,8 @@
 
 [arby]
 #live-cex="false"
-#base-asset = "ETH"
-#quote-asset = "BTC"
+#base-asset = "BTC"
+#quote-asset = "USDT"
 #test-centralized-baseasset-balance = "123"
 #test-centralized-quoteasset-balance = "321"
 #binance-api-key = "your api key"

images/utils/launcher/config/simnet.conf

@@ -35,8 +35,8 @@
 
 [arby]
 #live-cex="false"
-#base-asset = "ETH"
-#quote-asset = "BTC"
+#base-asset = "BTC"
+#quote-asset = "USDT"
 #test-centralized-baseasset-balance = "123"
 #test-centralized-quoteasset-balance = "321"
 #binance-api-key = "your api key"

images/utils/launcher/node/arby.py

@@ -26,9 +26,9 @@ def __init__(self, name, ctx):
         test_centralized_quoteasset_balance = self.node_config["test-centralized-quoteasset-balance"] \
             if "test-centralized-baseasset-balance" in self.node_config else "321"
         base_asset = self.node_config["base-asset"] \
-            if "base-asset" in self.node_config else "ETH"
+            if "base-asset" in self.node_config else "BTC"
         quote_asset = self.node_config["quote-asset"] \
-            if "quote-asset" in self.node_config else "BTC"
+            if "quote-asset" in self.node_config else "USDT"
 
         if self.network == "simnet":
             rpc_port = "28886"