Fix bat file (#23967)

Summary:
Add reactNativePath to cli.js

Add reactNativePath to cli.js

[GENERAL] [FIXED] - Internal - Update packagers to the latest CLI
Pull Request resolved: https://github.com/facebook/react-native/pull/23967

Differential Revision: D14502855

Pulled By: hramos

fbshipit-source-id: b9804e4fb364c004215227d938fe7101641f5b3c

scripts/launchPackager.bat

@@ -6,6 +6,6 @@
 @echo off
 title Metro Bundler
 call .packager.bat
-node "%~dp0..\cli.js" start
+node "%~dp0..\cli.js" --reactNativePath ../ start
 pause
 exit