Update magnum source

Author: MaxBed4d

etc/kayobe/kolla.yml

@@ -368,7 +368,7 @@ kolla_build_customizations_common:
     - /additions/*
   magnum_base_pip_packages_override:
     - /magnum[osprofiler]
-    - magnum-capi-helm==1.3.0
+    - magnum-capi-helm@git+https://github.com/stackhpc/magnum-capi-helm-fork@storage-class-patch
   neutron_server_packages_append:
     - python3-libvirt
     - python3-ethtool