Update .github/workflows/api_refs.yaml

Author: mnocon

.github/workflows/api_refs.yaml

@@ -4,7 +4,7 @@ on:
     workflow_dispatch:
         inputs:
             version:
-                description: 'Released version (for example: v4.6.21, `v5.0.0`)'
+                description: 'Released version (for example: v4.6.21, v5.0.0)'
                 required: true
                 type: string