fix: fix ORACLE_INSTANT_CLIENT_MIRROR default value

env-example

@@ -77,7 +77,7 @@ CHANGE_SOURCE=false
 # Set CHANGE_SOURCE and UBUNTU_SOURCE option if you want to change the Ubuntu system sources.list file.
 UBUNTU_SOURCE=aliyun
 # Set ORACLE INSTANT_CLIENT_MIRROR option if you want to use Intranet improve download, you can download files first
-ORACLE_INSTANT_CLIENT_MIRROR=http://192.168.0.42/downloads/oracle_instant_client/
+ORACLE_INSTANT_CLIENT_MIRROR=https://github.com/diogomascarenha/oracle-instantclient/raw/master/
 
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