[3.x] Php version check

[brianteeman]

Update the list of php versions to include 8.0

code review

[richard67]

I have tested this item ✅ successfully on fe07f97

---

_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/31977.}

[toivo]

I have tested this item ✅ successfully on fe07f97

Tested successfully in 3.9.24-rc2 of 11 January.

---

_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/31977.}

[richard67]

RTC

---

_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/31977.}

[brianteeman]

Thanks