Prevent updating qubes-release unless rpm is new enough

New repositories require rpm 4.14 (packages compressed with zstd) and
also new rpm requires qubes-core-dom0-linux >= 4.0.23 (different output
in rpm -K). Prevent installing new qubes-release unless those other
updates are installed too. Otherwise updating the system will stop
working.

QubesOS/qubes-issues#5685

qubes-release.spec.in

@@ -15,6 +15,8 @@ Provides:	fedora-release = %{fedora_base_version}-%{release}
 Provides:	redhat-release = %{fedora_base_version}-%{release}
 Provides:	system-release = %{fedora_base_version}-%{release}
 Provides:	system-release(releasever) = %{version}
+Conflicts:	rpm < 4.14
+Conflicts:	qubes-core-dom0-linux < 4.0.23
 Obsoletes:	qubes-dom0-dist-upgrade <= 3.2
 BuildRoot:	%{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildArch:	noarch