fix: add tmpfiles.d to create /var/lib/doh-forwarder

pkg/arch/PKGBUILD

@@ -12,8 +12,10 @@ backup=('etc/doh-forwarder/config.toml')
 source=("$pkgname::git+https://git.logicamp.dev/mohamad/doh-forwarder.git#tag=v${pkgver}"
         'doh-forwarder.service'
         'doh-forwarder.sysusers'
+        'doh-forwarder.tmpfiles'
         'doh-forwarder.conf')
 sha256sums=('SKIP'
+            'SKIP'
             'SKIP'
             'SKIP'
             'SKIP')
@@ -40,6 +42,7 @@ package() {
     # Systemd
     install -Dm644 "$srcdir/doh-forwarder.service" "$pkgdir/usr/lib/systemd/system/doh-forwarder.service"
     install -Dm644 "$srcdir/doh-forwarder.sysusers" "$pkgdir/usr/lib/sysusers.d/doh-forwarder.conf"
+    install -Dm644 "$srcdir/doh-forwarder.tmpfiles" "$pkgdir/usr/lib/tmpfiles.d/doh-forwarder.conf"
 
     # License
     install -Dm644 LICENSE "$pkgdir/usr/share/licenses/$pkgname/LICENSE"