Update to use the native qb-core Round function

[mbiddle]

Describe Pull request
Updating to use the native qb-core Round function. I didn't realize this function existed in my previous PR that introduced it.

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

Questions (please complete the following information):

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

[Cocodrulo]

That's a better approach, good job!

[Qwerty1Verified]

I did question it, but forgot we even had it.