Declare xorg-x11-server-Xvfb BuildRequired for CI

ibus.spec

@@ -61,7 +61,7 @@
 Name:           ibus
 Version:        1.5.30
 # https://github.com/fedora-infra/rpmautospec/issues/101
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        Intelligent Input Bus for Linux OS
 License:        LGPL-2.1-or-later
 URL:            https://github.com/ibus/%name/wiki
@@ -120,6 +120,13 @@ BuildRequires:  unicode-ucd
 BuildRequires:  systemd
 # for ibus-keypress
 BuildRequires:  libXtst-devel
+# Require xorg-x11-server-Xvfb by IBus CI and it does not resolve with
+# xwfb-run or wlheadless-run
+# Need to migrate IBus CI into gnome-headless-session
+BuildRequires:  xorg-x11-server-Xvfb
+BuildRequires:  libX11
+BuildRequires:  mutter
+
 
 Requires:       %{name}-libs%{?_isa}   = %{version}-%{release}
 %if %{with gtk2}
@@ -627,6 +634,9 @@ dconf update || :
 %{_datadir}/installed-tests/ibus
 
 %changelog
+* Thu May 16 2024 Takao Fujiwara <tfujiwar@redhat.com> - 1.5.30-6
+- Declare xorg-x11-server-Xvfb BuildRequired for CI
+
 * Thu May 16 2024 Takao Fujiwara <tfujiwar@redhat.com> - 1.5.30-5
 - Disable ibus-panel in ibus-desktop-testing-runner
 - Fix annocheck in engine_proxy_new_internal()