EasyBuild expects . in CUDA compute capabilities

Author: ocaisa

.github/workflows/tests_eessi_extend_module.yml

@@ -138,7 +138,7 @@ jobs:
           
           # Set an environment variable to use when we want to target accelerators
           export STORED_EESSI_ACCELERATOR_TARGET_OVERRIDE="accel/nvidia/cc80"
-          export STORED_CUDA_CC="80"
+          export STORED_CUDA_CC="8.0"
 
           # Let's start from a clean slate
           module purge