Fix incorrect import removal

api/src/main/java/com/velocitypowered/api/proxy/ConsoleCommandSource.java

@@ -7,6 +7,8 @@
 
 package com.velocitypowered.api.proxy;
 
+import com.velocitypowered.api.command.CommandSource;
+
 /**
  * Indicates that the executor of the command is the console.
  */