Fix colons

Author: Caspar van Leeuwen

scripts/gpu_support/nvidia/easystacks/2025.06/eessi-2025.06-eb-5.1.2-CUDA-host-injections.yml

@@ -1,15 +1,15 @@
 # This EasyStack provides a list of all the EasyConfigs that should be installed in host_injections 
 # for nvidia GPU support, because they cannot (fully) be shipped as part of EESSI due to license constraints
 easyconfigs:
-  - CUDA-12.6.0.eb
+  - CUDA-12.6.0.eb:
       options:
         accept-eula-for: CUDA
-  - CUDA-12.8.0.eb
+  - CUDA-12.8.0.eb:
       options:
         accept-eula-for: CUDA
-  - cuDNN-9.5.0.50-CUDA-12.6.0.eb
+  - cuDNN-9.5.0.50-CUDA-12.6.0.eb:
       options:
         accept-eula-for: cuDNN
-  - cuDNN-9.10.1.4-CUDA-12.8.0.eb
+  - cuDNN-9.10.1.4-CUDA-12.8.0.eb:
       options:
         accept-eula-for: cuDNN