map version 4 to 4.0

.github/actions/build-foo/action.yml

@@ -1,9 +1,10 @@
 name: Build foo.exe
 description: Build foo.exe
 inputs:
-  version:
-    description: Version to use
+  binary:
+    description: Compiler binary file name
     required: false
+    default: clang++
   platform:
     description: Target platform
     required: true
@@ -23,5 +24,5 @@ runs:
             $flags += '-lpthread'
         }
 
-        & "clang++$version" $flags
+        & '${{ inputs.binary }}' $flags
       shell: pwsh