[Versioning] Re-use the existing CurlClient for version checking

[BitcoinMitchell]

Description

The Prestashop team found an issue with the module whilst testing.

After installation they ran into an issue with a class not being available on a brand new instance. I've tried to replicate this issue, but was unable to and AFAIK, nobody else has had this issue, so it might be related to their test setup (as the backend theme in the video looks very different).

That said, since Guzzle requires a lot of packages to work and there is no real way to talk to the Prestashop Module team, I've decided to just simplify the whole process. To do so I've simply re-used the already existing (and known to be working) BTCPayServer CurlClient.

Type of change

Refactor (non-breaking change which improves the codebase).

How Has This Been Tested?

Uploaded the module locally on a clean Prestashop installation (using the one they showed in the video).

Test Configuration:

• BTCPay Server version: 1.12.5
• PrestaShop version: 8.1.0
• PHP version: 8.1.22

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have checked my code and corrected any misspellings

[ndeet]

LGTM! Less dependencies is always good and lowers the pain in the future 😆