main/*: disable jit on loongarch64
- main/pcre2: disable jit for loongarch64
- main/nginx: luajit is not available on loongarch64.
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.