tests: Enable more tests on Windows

Enable libs_rtp, libs_video and elements_compositor
6 jobs for base-more-tests in 29 minutes and 24 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Preparation
passed #70723
gst indent

00:00:15

passed #70722
manifest

00:00:33

 
  Build
passed #70724
build fedora x86_64

00:04:42

 
  Test
passed #70725
check fedora

00:16:29

 
  Full Builds
passed #70726
build android arm64 api28

00:03:48

passed #70727
build cerbero fedora x86_64

00:07:39