fix: no shutdown sound

PrivateDevices=true 导致找不到音频设备

Author: zsien

misc/systemd/system/deepin-shutdown-sound.service

@@ -10,7 +10,7 @@ Before=shutdown.target
 # https://en.opensuse.org/openSUSE:Security_Features#Systemd_hardening_effort
 ProtectSystem=full
 ProtectHome=true
-PrivateDevices=true
+#PrivateDevices=true
 ProtectHostname=true
 ProtectClock=true
 ProtectKernelTunables=true