package/shairport-sync: bump to version 2.8.4

Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/shairport-sync/shairport-sync.hash

@@ -1,2 +1,2 @@
 # Locally calculated
-sha256  4dfdaf0883b94c7061c894be295c878ede3048355bd415905db14ccb74159b72  shairport-sync-2.8.3.tar.gz
+sha256  80dd94c5f37b43e9b157dd5335f8edaf11109859d0144e0046c7b86fe88f6547  shairport-sync-2.8.4.tar.gz

package/shairport-sync/shairport-sync.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-SHAIRPORT_SYNC_VERSION = 2.8.3
+SHAIRPORT_SYNC_VERSION = 2.8.4
 SHAIRPORT_SYNC_SITE = $(call github,mikebrady,shairport-sync,$(SHAIRPORT_SYNC_VERSION))
 
 SHAIRPORT_SYNC_LICENSE = MIT, BSD-3c