package/sdl2: bump version to 2.30.0

Update the license hash because of a change in copyright year:
- Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
+ Copyright (C) 1997-2024 Sam Lantinga <slouken@libsdl.org>

Signed-off-by: Michael Fischer <mf@go-sys.de>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>

package/sdl2/sdl2.hash

@@ -1,4 +1,4 @@
-# Locally calculated after checking http://www.libsdl.org/release/SDL2-2.28.5.tar.gz.sig
-sha256  332cb37d0be20cb9541739c61f79bae5a477427d79ae85e352089afdaf6666e4  SDL2-2.28.5.tar.gz
+# Locally calculated after checking http://www.libsdl.org/release/SDL2-2.30.0.tar.gz.sig
+sha256  36e2e41557e0fa4a1519315c0f5958a87ccb27e25c51776beb6f1239526447b0  SDL2-2.30.0.tar.gz
 # Locally calculated
-sha256  9928507f684c1965d07f2b6ef4b4723d5efc2f6b4ab731f743a413c51c319927  LICENSE.txt
+sha256  9b9e1764f06701bcf7ce21e942c682d5921ba0900c6fca760321b1c8837a9662  LICENSE.txt

package/sdl2/sdl2.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-SDL2_VERSION = 2.28.5
+SDL2_VERSION = 2.30.0
 SDL2_SOURCE = SDL2-$(SDL2_VERSION).tar.gz
 SDL2_SITE = http://www.libsdl.org/release
 SDL2_LICENSE = Zlib