Deps: Update SDL3 to v3.4.8

.github/workflows/scripts/linux/build-dependencies-qt.sh

@@ -27,7 +27,7 @@ LIBJPEGTURBO=3.1.4.1
 LIBPNG=1.6.56
 LIBWEBP=1.6.0
 NVENC=13.0.19.0
-SDL=SDL3-3.4.4
+SDL=SDL3-3.4.8
 LZ4=1.10.0
 VULKAN=1.4.328.1
 ZSTD=1.5.7
@@ -60,7 +60,7 @@ b072aed6871998cce9b36e7774033105ca29e33632be5b6347f3206898e0756a  ffmpeg-$FFMPEG
 ecae8008e2cc9ade2f2c1bb9d5e6d4fb73e7c433866a056bd82980741571a022  libjpeg-turbo-$LIBJPEGTURBO.tar.gz
 f7d8bf1601b7804f583a254ab343a6549ca6cf27d255c302c47af2d9d36a6f18  libpng-$LIBPNG.tar.xz
 e4ab7009bf0629fd11982d4c2aa83964cf244cffba7347ecd39019a9e38c4564  libwebp-$LIBWEBP.tar.gz
-ee712dbe6a89bb140bbfc2ce72358fb5ee5cc2240abeabd54855012db30b3864  $SDL.tar.gz
+e9fff7467fb60f037e6708da18b25560649e4c63edc2a69bb871b960d9cbfbba  $SDL.tar.gz
 9ce32d4a2763a2ac5f258726ba2f49e9011327c1ee8c30862a32d0f30889fbe8  libpng-$LIBPNG-apng.patch.gz
 537512904744b35e232912055ccf8ec66d768639ff3abe5788d90d792ec5f48b  lz4-$LZ4.tar.gz
 13da39edb3a40ed9713ae390ca89faa2f1202c9dda869ef306a8d4383e242bee  nv-codec-headers-$NVENC.tar.gz

.github/workflows/scripts/linux/flatpak/modules/20-sdl3.json

@@ -14,8 +14,8 @@
   "sources": [
     {
       "type": "archive",
-      "url": "https://libsdl.org/release/SDL3-3.4.4.tar.gz",
-      "sha256": "ee712dbe6a89bb140bbfc2ce72358fb5ee5cc2240abeabd54855012db30b3864"
+      "url": "https://libsdl.org/release/SDL3-3.4.8.tar.gz",
+      "sha256": "e9fff7467fb60f037e6708da18b25560649e4c63edc2a69bb871b960d9cbfbba"
     }
   ],
   "cleanup": [