prepare_ovs call gather facts (#27468)

* prepare_ovs call gather facts

As we are no longer using run_ovs_integration_tests.yml we need to
explicitly gather facts so we can call the correct package manager.

* typo

test/integration/targets/prepare_ovs_tests/tasks/main.yml

@@ -1,5 +1,11 @@
 ---
 
+# network-integration test are ran with gather_facts: no
+# We need to explicitly call setup so ansible_distribution is set
+
+- name: Gather facts
+  setup:
+
 - name: Install openvswitch-switch package if we are on Ubuntu
   apt:
     name: openvswitch-switch