Fix verifyReleaseOnNPM by dropping the v in the version (#49944)

Summary:
GHA passes the version to the script with a `v` prefix. However, when we receive the version from NPM, the `v` prefix is not here.
We can fix the script by dropping the `v` when it is passed to the function.

bypass-github-export-checks

## Changelog:
[Internal] - Fix verifyPackageOnNPM

Pull Request resolved: https://github.com/facebook/react-native/pull/49944

Test Plan: GHA

Reviewed By: cortinico, fabriziocucci

Differential Revision: D70960414

Pulled By: cipolleschi

fbshipit-source-id: 4234103ebe49cf715aea4a1473a8a60978f07a9f