remove mono source to speedup

.gitlab-ci.yml

@@ -49,6 +49,7 @@ pack:
     - linux
   image: mono
   script:
+    - sed -i '/mono-project.com/d' /etc/apt/sources.list /etc/apt/sources.list.d/*
     - apt update && apt -y install p7zip-full wget git
     - mkdir -p dist/archive dist/contents
     - git clone --depth=1 https://code.mycard.moe/alstroemeria-silentlove/ygopro-222DIY-sound sound