ci(windows): smol fix

ci/windows/prepare-windows.cmd

@@ -10,5 +10,6 @@ REM Import the generated includes to get the plugin's name
 call "%~dp0..\ci_includes.generated.cmd"
 
 REM Rename the solution files to something CI can pick up 
+cd ..
 ren "build32\%PluginName%.sln" "main.sln"
 ren "build64\%PluginName%.sln" "main.sln"