Revert "buid(debian): remove config-package build deps."

config-package-dev is required for files hide and displace in the Debian
pkg.

This reverts commit d618583390.

.github/workflows/main.yml

@@ -14,7 +14,8 @@ jobs:
         run: |
           sudo apt-get update -q
           sudo apt-get install -y \
-            devscripts debhelper auditd apparmor-profiles
+            devscripts debhelper config-package-dev \
+            auditd apparmor-profiles
           sudo rm /etc/apparmor.d/usr.lib.snapd.snap-confine.real
 
       - name: Build the apparmor.d package