change the release env

.github/release.env

@@ -1,2 +1,2 @@
-MAINNET_FILE_URL="https://github.com/binance-chain/bsc/releases/download/v1.1.2/mainnet.zip"
-TESTNET_FILE_URL="https://github.com/binance-chain/bsc/releases/download/v1.1.2/testnet.zip"
+MAINNET_FILE_URL="https://github.com/binance-chain/bsc/releases/download/v1.1.6/mainnet.zip"
+TESTNET_FILE_URL="https://github.com/binance-chain/bsc/releases/download/v1.1.6/testnet.zip"