Change default return of ConfigRequired to true

Commands that haven't been added to the map, such as plugins, should
require the config by default.

Signed-off-by: Jorge Gasca <jorge.ignacio.gasca@gmail.com>

pkg/action/action.go

@@ -283,5 +283,9 @@ func ConfigRequired(command string) bool {
 		"helm": false,
 	}
 
-	return actionConfigRequired[command]
+	if val, ok := actionConfigRequired[command]; ok {
+		return val
+	}
+	// Assume commands not present in the map require the config by default
+	return true
 }