Magnum bump

Bumped Magnum - support for 1.27

Author: darmach

etc/kayobe/kolla/globals.yml

@@ -32,9 +32,9 @@ kayobe_image_tags:
     rocky: yoga-20240320T082414
     ubuntu: yoga-20240320T082414
   magnum:
-    centos: yoga-20240308T154440
-    rocky: yoga-20240308T154440
-    ubuntu: yoga-20240308T154440
+    centos: yoga-20240416T102136
+    rocky: yoga-20240416T102136
+    ubuntu: yoga-20240416T102136
   neutron:
     centos: yoga-20231114T125927
     rocky: yoga-20240105T120257