add --mirror option

Author: missytake

.github/workflows/build-deb.yml

@@ -20,7 +20,7 @@ jobs:
         run: |
           apt update
           apt install -y git-buildpackage build-essential debhelper-compat default-libmysqlclient-dev krb5-multidev libapparmor-dev libbz2-dev libcap-dev libdb-dev libexpat-dev libexttextcat-dev libicu-dev libldap2-dev liblua5.4-dev liblz4-dev liblzma-dev libpam0g-dev libpq-dev libsasl2-dev libsodium-dev libsqlite3-dev libssl-dev libstemmer-dev libsystemd-dev libwrap0-dev libzstd-dev pkg-config zlib1g-dev
-          DEB_BUILD_OPTIONS=nocheck gbp buildpackage --git-no-pristine-tar -us -uc
+          DEB_BUILD_OPTIONS=nocheck gbp buildpackage --git-no-pristine-tar -us -uc --git-pbuilder-options="--mirror http://deb.debian.org/debian"
           mkdir -p "$HOME/.ssh"
           echo "${{ secrets.KEY }}" > "$HOME/.ssh/key"
           chmod 600 "$HOME/.ssh/key"