docker: fedora: add qt5 devel package.

add qt5 devel package to build qt plugin

Part-of: <gstreamer/gst-ci!400>

docker/fedora/prepare.sh

@@ -62,6 +62,7 @@ dnf install -y \
     mono-devel \
     procps-ng \
     patch \
+    qt5-devel \
     redhat-rpm-config \
     json-glib \
     json-glib-devel \
@@ -205,10 +206,6 @@ dnf builddep -y gstreamer1 \
 # Remove gst-devel packages installed by builddep above
 dnf remove -y "gstreamer1*devel"
 
-# Remove Qt5 devel packages as we haven't tested building it and
-# it leads to build issues in examples.
-dnf remove -y "qt5-qtbase-devel"
-
 # FIXME: Why does installing directly with dnf doesn't actually install
 # the documentation files?
 dnf download glib2-doc gdk-pixbuf2-devel*x86_64* gtk3-devel-docs