Switch to our Geo mirror and use the latest image

Instead of figuring out the date to use, specify that we want the
latest bootstrap image. Also use geo.mirror.pkgbuild.com for both
the mirror to fetch the image from and the mirror used inside the
container.

Author: foutrelis

repro.in

@@ -15,12 +15,11 @@ BUILDDIRECTORY=/var/lib/repro
 
 KEYRINGCACHE="${BUILDDIRECTORY}/keyring"
 
-IMG_RELEASE_TIMESTAMP="$(date -d '24 hours ago' -u +%Y.%m)".01
-BOOTSTRAPMIRROR="https://europe.mirror.pkgbuild.com/iso/$IMG_RELEASE_TIMESTAMP"
-readonly bootstrap_img=archlinux-bootstrap-"$IMG_RELEASE_TIMESTAMP"-"$(uname -m)".tar.gz
+BOOTSTRAPMIRROR="https://geo.mirror.pkgbuild.com/iso/latest"
+readonly bootstrap_img=archlinux-bootstrap-"$(uname -m)".tar.gz
 CONFIGDIR='REPRO_CONFIG_DIR'
 
-HOSTMIRROR="https://europe.mirror.pkgbuild.com/\$repo/os/\$arch"
+HOSTMIRROR="https://geo.mirror.pkgbuild.com/\$repo/os/\$arch"
 
 ARCHIVEURL="${ARCH_ARCHIVE_CACHE:-https://archive.archlinux.org/packages}"