tests: Ensure that podman and conmon are at the latest version

The Fedora CI VMs often lag behind for a week. As podman and conmon get
daily updates, make sure we are testing against the latest version.

tests/roles/test/tasks/main.yml

@@ -1,4 +1,11 @@
 ---
+- name: upgrade critical packages to the latest version
+  dnf:
+    name:
+      - podman
+      - conmon
+    state: latest
+
 - include_role:
     name: standard-test-source