Add deployed version to API

[alexjustesen]

Discussed in https://github.com/alexjustesen/speedtest-tracker/discussions/1401

^{Originally posted by thickconfusion April 26, 2024} I like to monitor the deployed version of my containers. api/speedtest/latest does not contain a deployed version of Speedtest. Can it be added to this endpoint's JSON, or a different endpoint?

It may be as simple as editing https://github.com/alexjustesen/speedtest-tracker/blob/4ff86a9eb6d5465c7cc0b84199b7c452c6687b99/app/Http/Controllers/API/Speedtest/GetLatestController.php#L18 and pointing to a system version already being reported.