ffmpeg.wrap: Bump to 4.1.3

Tested on Windows.
6 jobs for <span class="ref-name">reduce-PATH-size</span> in 18 minutes and 36 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Preparation
passed #237843
gst indent

00:00:17

passed #237842
manifest

00:00:33

 
  Build
passed #237844
build fedora x86_64

00:05:32

passed #237845
build nodebug fedora x86_64

00:05:41

 
  Test
passed #237846
check fedora

00:03:44

passed #237847
integration testsuites fedora

00:12:22