test: apply a workaround for Fedora-CoreOS rebased on Fedora 41

Fedora CoreOS has been rebased on Fedora 41 which brings in Python 3.13
build rpm's while our WS container uses Python 3.12 and thus we aren't
testing main.

test/ws-container.install

@@ -16,6 +16,13 @@ system
 for rpm in ws bridge tests $PACKAGES; do
     rpm2cpio /var/tmp/cockpit-$rpm-*.rpm | cpio -i --make-directories --directory=/var/tmp/install
 done
+
+# HACK: Fedora CoreOS is already on Python 3.13, while Fedora-40 is Python3.12
+if [ -d /var/tmp/install/usr/lib/python3.13/site-packages/cockpit ]; then
+    mkdir -p /var/tmp/install/usr/lib/python3.12/site-packages/
+    mv /var/tmp/install/usr/lib/python3.13/site-packages/cockpit /var/tmp/install/usr/lib/python3.12/site-packages/
+fi
+
 podman run --name build-cockpit -i \
     -v /var/tmp/:/run/build:Z \
     quay.io/cockpit/ws sh -exc '