Use the mirror.pkgbuild.com mirror for all builds

Builds fails from time to time, often due to a out-of-sync or broken
mirror. So let's switch to a reliable™ mirror managed by us instead of
rolling the dice on every build.
8 jobs for mirrors in 23 seconds (queued for 353 minutes and 13 seconds)
latest
Name Stage Failure
failed
build:vagrant-virtualbox Build There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log
failed
build:vagrant-qemu Build There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log
failed
build:cloud-qemu Build There has been a timeout failure or the job got stuck. Check your timeout limits or try again
No job log