Fix: adduser instead of useradd in postinst for all packages

packages/bin/dufs-bin/DEBBUILD

@@ -3,7 +3,7 @@
 pkgname="dufs"
 arch="amd64"
 pkgver="0.35.0"
-pkgrel=1
+pkgrel=2
 pkgdesc="A file server that supports static serving, uploading, searching, accessing control, webdav..."
 url="https://github.com/sigoden/dufs"
 maintainer="Leafee98 <me@leafee98.com>"
@@ -25,7 +25,7 @@ function package {
 function debian_postinst {
     cat << EOF
 #!/usr/bin/env bash
-useradd --system dufs
+adduser --system dufs
 mkdir -p /srv/dufs
 chown dufs:dufs -R /srv/dufs
 systemctl daemon-reload

packages/bin/forgejo-bin/DEBBUILD

@@ -2,7 +2,7 @@
 
 pkgname="forgejo"
 arch="amd64"
-pkgrel=2
+pkgrel=3
 pkgver="1.20.1-0"
 pkgdesc="A painless selfhost git service."
 url="https://codeberg.org/forgejo/forgejo"
@@ -27,7 +27,7 @@ mkdir -p /var/lib/forgejo
 mkdir -p /etc/forgejo/conf
 touch /etc/forgejo/conf/app.ini
 
-useradd --system git
+adduser --system git
 chown -R git:git /var/lib/forgejo /etc/forgejo /etc/forgejo/app.ini
 
 systemctl daemon-reload

packages/bin/plik-bin/DEBBUILD

@@ -2,7 +2,7 @@
 
 pkgname="plik-bin"
 arch="amd64"
-pkgrel=2
+pkgrel=3
 pkgver="1.3.7"
 pkgdesc="Plik is a temporary file upload system (Wetransfer like) in Go."
 _arch="amd64"
@@ -29,7 +29,7 @@ function package {
 function debian_postinst {
     cat << EOF
 #!/usr/bin/env bash
-useradd --system plik
+adduser --system plik
 systemctl daemon-reload
 EOF
 }