Merge branch 'improve_mpi-settings_cuda' into '2022'

Otherwise sanity check fails

See merge request hps-public/easybuild-repository!1103

Golden_Repo/p/psmpi-settings/psmpi-settings-5.5-CUDA.eb

@@ -27,13 +27,13 @@ modextravars = {
 modluafooter = '''
 if mode()=="load" then
     if isloaded("UCX-settings/RC") then
-        load("UCX-settings/RC-CUDA")
+        try_load("UCX-settings/RC-CUDA")
     elseif isloaded("UCX-settings/UD") then
-        load("UCX-settings/UD-CUDA")
+        try_load("UCX-settings/UD-CUDA")
     elseif isloaded("UCX-settings/DC") then
-        load("UCX-settings/DC-CUDA")
+        try_load("UCX-settings/DC-CUDA")
     elseif not isloaded("UCX-settings") then
-        load("UCX-settings/RC-CUDA")
+        try_load("UCX-settings/RC-CUDA")
     end
 end
 '''