Require explicit version-release of chromium-libs from media-freeworld

Since the freeworld package is built in another repository,
it may be out of sync. This makes sure `dnf update` won't just
remove the installed version of chromium in order to update
chromium-libs-media-freeworld if that happens to be in the repo
sooner than chromium.

Reported as #4572 in that other repository.

chromium.spec

@@ -534,6 +534,7 @@ Shared libraries used by chromium (and chrome-remote-desktop).
 Summary: Chromium media libraries built with all possible codecs
 Provides: chromium-libs-media = %{version}-%{release}
 Provides: chromium-libs-media%{_isa} = %{version}-%{release}
+Requires: chromium-libs%{_isa} = %{version}-%{release}
 Requires(post): %{_sbindir}/update-alternatives
 Requires(preun): %{_sbindir}/update-alternatives