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The keyring in our base image is outdated.

Also don't fail the first iteration of upgrade

Solution found by Jordan Petritis

They're always meson now.

Remove dist check on the CI, since it doesn't really
add anything in the Meson case (tarball is based
on files checked into git and srcdir != builddir).

The old one (v8) was removed from the gstreamer registry it seems.

This setup stores more debug info

Also upgrade to Windows image v8 as the image needs to match the host

Uses a wrap file to download a prebuilt OpenSSL from our git as a
subproject.
Builds for both amd64 & x86

For now it uses the gstreamer docker image and shared runner, based
on windows server 1607. The runner will migrate to windows 1807
soonish hopefully.

This commit also adds a glib wrap file needed to build
libnice.

Also remove workarounds for the older versions.