Temporarily (?) building from rocky 8 genericcloud + update in fatimage

Author: wtripp180901

.github/workflows/fatimage.yml

@@ -23,8 +23,8 @@ jobs:
       matrix: # build RL8, RL9
         build:
           - image_name: openhpc-RL8
-            source_image_name: rocky-latest-RL8
-            inventory_groups: control,compute,login
+            source_image_name: Rocky-8-GenericCloud-Base-8.10-20240528.0.x86_64.qcow2
+            inventory_groups: control,compute,login,update
           - image_name: openhpc-RL9
             source_image_name: rocky-latest-RL9
             inventory_groups: control,compute,login