package/flutter-sdk-bin: bump version to 3.13.9

Signed-off-by: Adam Duskett <adam.duskett@amarulasolutions.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/flutter-sdk-bin/flutter-sdk-bin.hash

@@ -1,3 +1,3 @@
 # Locally calculated
-sha256  d9bbfbfb6fe3c72a29c1040235126edd0cd461e4e18556335fd1cf217c2e1473  flutter_linux_3.13.4-stable.tar.xz
+sha256  b6bc6f93423488c67110e0fe56523cd2260f3a4c379ed015cd1c7fab66362739  flutter_linux_3.13.9-stable.tar.xz
 sha256  a598db94b6290ffbe10b5ecf911057b6a943351c727fdda9e5f2891d68700a20  LICENSE

package/flutter-sdk-bin/flutter-sdk-bin.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-FLUTTER_SDK_BIN_VERSION = 3.13.4
+FLUTTER_SDK_BIN_VERSION = 3.13.9
 FLUTTER_SDK_BIN_SITE = https://storage.googleapis.com/flutter_infra_release/releases/stable/linux
 FLUTTER_SDK_BIN_SOURCE = flutter_linux_$(FLUTTER_SDK_BIN_VERSION)-stable.tar.xz
 FLUTTER_SDK_BIN_LICENSE = BSD-3-Clause