Revert "vendor: update FFmpeg to n7.1-11-g5c59d97e8a"

This reverts commit e8682c8.

Author: bastimeyer

config.yml

@@ -6,11 +6,11 @@ git:
   ref: 7.1.2
 assets:
   ffmpeg-x86_64:
-    filename: ffmpeg-n7.1-11-g5c59d97e8a-win64-gpl-7.1.zip
-    url: https://github.com/streamlink/FFmpeg-Builds/releases/download/20241012-1/ffmpeg-n7.1-11-g5c59d97e8a-win64-gpl-7.1.zip
-    sha256: df95fbcd69cd4aadd8023b78aec448d38bed85a63661379c85d4e39d95e0c95a
+    filename: ffmpeg-n7.0-7-gd38bf5e08e-win64-gpl-7.0.zip
+    url: https://github.com/streamlink/FFmpeg-Builds/releases/download/20240406-2/ffmpeg-n7.0-7-gd38bf5e08e-win64-gpl-7.0.zip
+    sha256: 8e05eb9e9a0dedd5539a070baa4a9d3725fa5b6288337675bdc9486f62568878
     type: zip
-    sourcedir: ffmpeg-n7.1-11-g5c59d97e8a-win64-gpl-7.1
+    sourcedir: ffmpeg-n7.0-7-gd38bf5e08e-win64-gpl-7.0
     targetdir: ffmpeg
     files:
       - from: bin/ffmpeg.exe