gating: Workaround to install latest packages

Thanks to Miroslav Vadkerti (mvadkert) for the workaround.

Without this an older version of osbuild-composer was being installed,
and it would not start the server.

Related: rhbz#1996788

tests/tests.yml

@@ -1,6 +1,31 @@
 ---
 # Run weldr-client tests with osbuild-composer
 - hosts: localhost
+
+  # workaround to get latest packages installed until TFT-388 is resolved
+  pre_tasks:
+    - block:
+        - name: Set tag-repository priority so it is preferred
+          command: "sed -i 's/priority=.*/priority=9/' /etc/yum.repos.d/tag-repository.repo"
+
+        - name: Update to latest packages
+          command: "dnf -y update *"
+          register: update_packages
+
+        - block:
+            - name: Restart if kernel updated
+              reboot:
+
+            - name: Wait for connection for 5 minutes
+              wait_for_connection:
+                delay: 5
+                timeout: 300
+
+          when: "'kernel-' in update_packages.stdout"
+
+      tags:
+        - classic
+
   roles:
     - role: standard-test-basic
       tags: