Fix MediaInfoURLTest::test_parse_url with libmediainfo v20.03
Fix MediaInfoURLTest::test_parse_url with libmediainfo v20.03

The old URL was not directly pointing to the file and redirects are no
longer followed since:
https://github.com/MediaArea/MediaInfoLib/commit/47950611eb22f0968d583ddc6871274a92b8d12c

paltman-archive/pymediainfo,paltman/pymediainfo