Latest release tag

[apetrovici]

Overview/summary

Hi! The tags show new versions being released (v5.10.11, v6.0.0), however the latest release tag remained at v5.10.0
https://github.com/Shopify/shopify-api-php/releases/tag/v5.10.0.

Can you please update so that there is no confusion over which version is current.

Thanks.

Motivation

CLI tools can fetch the latest version to check for updates.