Use archbuild@white CI runner

.gitlab-ci.yml

-stages:
- - build
- - deploy
+---
 
 makepkg:
   stage: build
-  image: archlinux/base:latest
-  before_script:
-    - echo 'Server = http://mir.archlinux.fr/$repo/os/$arch' > /etc/pacman.d/mirrorlist
-    - echo '[seblu]' >> /etc/pacman.conf
-    - echo 'Server = http://al.seblu.net/$repo/$arch' >> /etc/pacman.conf
-    - echo 'SigLevel = Required TrustedOnly' >> /etc/pacman.conf
-    - pacman --sync --refresh --sysupgrade --noconfirm
-    - pacman --sync --noconfirm base-devel devtools
-    - useradd --create-home --shell /bin/bash build
-    - "echo 'build ALL = NOPASSWD: /usr/bin/pacman' > /etc/sudoers.d/build"
-    - "[ -n \"$PACKAGER\" ] && echo \"PACKAGER='$PACKAGER'\" > /home/build/.makepkg.conf"
-    - echo "MAKEFLAGS='-j$(nproc)'" >> /home/build/.makepkg.conf
   script:
-    - ulimit -c 0
-    - sudo -u build -- makepkg --syncdeps --noconfirm
+    - seblu-build
   artifacts:
     name: $CI_PROJECT_NAME-$CI_COMMIT_REF_NAME-$CI_COMMIT_SHA
     expire_in: 1 week
     paths:
       - "*.pkg.tar.xz"
-  only:
-    changes:
-      - PKGBUILD
 
 commitpkg:
   stage: deploy
-  image: archlinux/base:latest
-  before_script:
-    - echo 'Server = http://mir.archlinux.fr/$repo/os/$arch' > /etc/pacman.d/mirrorlist
-    - echo '[seblu]' >> /etc/pacman.conf
-    - echo 'Server = http://al.seblu.net/$repo/$arch' >> /etc/pacman.conf
-    - echo 'SigLevel = Required TrustedOnly' >> /etc/pacman.conf
-    - pacman --sync --refresh --sysupgrade --noconfirm
-    - pacman --sync --noconfirm openssh archrepo-git
+  script:
     - eval $(ssh-agent -s)
     - echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add - > /dev/null
-    - mkdir -p ~/.ssh && chmod 700 ~/.ssh
-    - echo "$SSH_KNOWN_HOSTS" > ~/.ssh/known_hosts &&
-    - chmod 644 ~/.ssh/known_hosts
-  script:
     - seblu-push
   only:
     refs: