Update pt.lua - Githubissues

Update Getconvar function to latest qbcore standards. Language PT is now loading.

Describe Pull request

Update Getconvar function to latest qbcore standards. Language PT is now loading.

If your PR is to fix an issue mention that issue here

Issue: Language not loading. Always showing english.

Questions (please complete the following information):

Have you personally loaded this code into an updated qbcore project and checked all it's functionality? yes
Does your code fit the style guidelines? yes
Does your PR fit the contribution guidelines? yes

qbcore-framework / qb-doorlock