Updated avidemux packages fix security issues in the bundles ffmpeg

Updated avidemux packages fix security vulnerabilities: Avidemux built with a bundled set of FFmpeg libraries. The bundled FFmpeg versions have been updated to 0.9.4 in Mageia 3 and 1.2.7 in Mageia 4 to fix several security issues and other bugs fixed upstream in FFmpeg. For the Mageia 3 update,...