package/fluidsynth: bump to version 2.4.0

For change log since v2.3.7, see:
https://github.com/FluidSynth/fluidsynth/releases/tag/v2.4.0

Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/fluidsynth/fluidsynth.hash

@@ -1,3 +1,3 @@
 # Locally computed
-sha256  38d1d910783ab67c07a4d859d1aa95525979ff352b927e25b1ae894c774bb4c4  fluidsynth-2.3.7.tar.gz
+sha256  fd4d216a3030abc56a339985ab0506328660cd77b2d71dd98c240c58c03d8f7f  fluidsynth-2.4.0.tar.gz
 sha256  9b872a8a070b8ad329c4bd380fb1bf0000f564c75023ec8e1e6803f15364b9e9  LICENSE

package/fluidsynth/fluidsynth.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-FLUIDSYNTH_VERSION = 2.3.7
+FLUIDSYNTH_VERSION = 2.4.0
 FLUIDSYNTH_SITE = $(call github,FluidSynth,fluidsynth,v$(FLUIDSYNTH_VERSION))
 FLUIDSYNTH_LICENSE = LGPL-2.1+
 FLUIDSYNTH_LICENSE_FILES = LICENSE