- vid-stab 1.1.0 (current release) hardcodes libgomp in its pkg-config.
Current git version includes a commit fixing this, so this change
updates to the git versions
- placing openmp in `buildInputs` causes it not to be present when
linking against vid-stab, causing linking to fail. Move it to
`propagatedBuildInputs` to resolve
- the all-packages.nix change enables vid-stab in (for example) ffmpeg
on macos (where it was previously disabled).