Upgrade to PHP 7.4
This is my first attempt at #11002 (closed) after finding this commit. I have no idea what I'm doing yet, but hopefully it's in the right direction.
We are currently working on getting Alpine Linux 3.21 out. This means that merge requests that are not aimed to help with that (only affecting testing, new aports) have a lower priority at the moment. Please be patient, they will be eventually picked up.
This is my first attempt at #11002 (closed) after finding this commit. I have no idea what I'm doing yet, but hopefully it's in the right direction.