debian: Add `systemctl daemon-reload` to postinst and postrm

Otherwise, systemd drop-ins aren't registered until a reboot
or manual reload.

debian/librem5-base-defaults.postinst

@@ -46,6 +46,9 @@ case "$1" in
         if which update-initramfs >/dev/null; then
             update-initramfs -u
         fi
+        if [ -d /run/systemd/system ]; then
+            systemctl daemon-reload
+        fi
     ;;
 
     abort-upgrade|abort-remove|abort-deconfigure)

debian/librem5-base-defaults.postrm

@@ -7,6 +7,9 @@ case "$1" in
         if which update-initramfs >/dev/null; then
             update-initramfs -u
         fi
+        if [ -d /run/systemd/system ]; then
+            systemctl daemon-reload
+        fi
         ;;
 esac