avformat/mov: Add avif to list of supported extensions

AVIF still and animations are now supported by the MOV parser.
Add the "avif" extension to the list of supported extensions to
AVInputFormat.

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>

libavformat/mov.c

@@ -9036,7 +9036,7 @@ const AVInputFormat ff_mov_demuxer = {
     .long_name      = NULL_IF_CONFIG_SMALL("QuickTime / MOV"),
     .priv_class     = &mov_class,
     .priv_data_size = sizeof(MOVContext),
-    .extensions     = "mov,mp4,m4a,3gp,3g2,mj2,psp,m4b,ism,ismv,isma,f4v",
+    .extensions     = "mov,mp4,m4a,3gp,3g2,mj2,psp,m4b,ism,ismv,isma,f4v,avif",
     .flags_internal = FF_FMT_INIT_CLEANUP,
     .read_probe     = mov_probe,
     .read_header    = mov_read_header,