tests: skip livemigration for centos (#4801)

This PR skips live migration on centos as the default installations for qemu/libvirt don't support it.

Fixes #4757

Co-authored-by: Daan Hoogland <dahn@onecht.net>

Author: DaanHoogland

test/integration/smoke/test_vm_life_cycle.py

@@ -1409,6 +1409,11 @@ def setUp(self):
         if len(self.hosts) < 2:
             self.skipTest("Requires at least two hosts for performing migration related tests")
 
+
+        for host in self.hosts:
+            if host.details['Host.OS'] in ['CentOS']:
+                self.skipTest("live migration is not stabily supported on CentOS")
+
     def tearDown(self):
         try:
             cleanup_resources(self.apiclient, self.cleanup)