deprecate ofed role and remove ofed images from update docs

Author: sjpb

ansible/roles/ofed/README.md

@@ -1,5 +1,10 @@
 # ofed
 
+> [!IMPORTANT]
+> This role is deprecated - it is not regularly maintained and StackHPC CI
+> does not test that it works. Consider using [ansible/roles/doca](../doca/README.md)
+> instead.
+
 This role installs Mellanox OFED:
 - It checks that the running kernel is the latest installed one, and errors if not.
 - Installation uses the `mlnxofedinstall` command, with support for the running kernel

docs/upgrades.md

@@ -54,9 +54,9 @@ All other commands should be run on the Ansible deploy host.
    Make changes as necessary.
 
 1. Identify image(s) from the relevant [Slurm appliance release](https://github.com/stackhpc/ansible-slurm-appliance/releases), and download
-   using the link on the release plus the image name, e.g. for an image `openhpc-ofed-RL8-240906-1042-32568dbb`:
+   using the link on the release plus the image name, e.g. for an image `openhpc-RL9-250708-1547-1494192e`:
 
-        wget https://object.arcus.openstack.hpc.cam.ac.uk/swift/v1/AUTH_3a06571936a0424bb40bc5c672c4ccb1/openhpc-images/openhpc-ofed-RL8-240906-1042-32568dbb
+        wget https://object.arcus.openstack.hpc.cam.ac.uk/swift/v1/AUTH_3a06571936a0424bb40bc5c672c4ccb1/openhpc-images/openhpc-RL9-250708-1547-1494192e
 
     Note that some releases may not include new images. In this case use the image from the latest previous release with new images.