Remove type key from action.yml inputs

Author: JohannesRudolph

action.yml

@@ -4,15 +4,12 @@ inputs:
   base_url:
     description: 'The URL of the meshStack instance'
     required: true
-    type: string
   client_id:
     description: 'The client ID for authentication'
     required: true
-    type: string
   key_secret:
     description: 'The key secret for authentication'
     required: true
-    type: string
 outputs:
   token_file:
     description: 'Path to the file containing the authentication token'