upgrade ffmpeg to ffmpeg-7.1.1-250603095151 for ios by cd

Author: Anka

configs/libs/ffmpeg.sh

@@ -43,6 +43,6 @@ fi
 export PRE_COMPILE_TAG=ffmpeg-6.1.2-250227145407
 export PRE_COMPILE_TAG_TVOS=ffmpeg-6.1.1-250520112635
 export PRE_COMPILE_TAG_MACOS=ffmpeg-7.1.1-250530093148
-export PRE_COMPILE_TAG_IOS=ffmpeg-6.1.1-250520112635
+export PRE_COMPILE_TAG_IOS=ffmpeg-7.1.1-250603095151
 export PRE_COMPILE_TAG_ANDROID=ffmpeg-6.1.2-250310113110