epoxy to ubuntu-22.04

Author: k0ka

.github/workflows/integration_tests.yml

@@ -24,7 +24,7 @@ jobs:
         include:
           - name: "epoxy"
             openstack_version: "stable/2025.1"
-            ubuntu_version: "24.04"
+            ubuntu_version: "22.04"
           - name: "dalmatian"
             openstack_version: "stable/2024.2"
             ubuntu_version: "22.04"