[advanced][protocoltemplates] Add missing templated user

This comes from the atvs_keystroke database which uses
a dataformat belonging to a "standard" user which is
tutorial.

advanced/protocoltemplates/simple_keystroke_recognition/1.json

@@ -7,7 +7,7 @@
                 "file_id": "{{ system_user.username }}/uint64/1",
                 "client_id": "{{ system_user.username }}/text/1",
                 "template_id": "{{ system_user.username }}/text/1",
-                "keystroke": "user/atvs_keystroke/1"
+                "keystroke": "{{ user.username }}/atvs_keystroke/1"
             }
         },
         {
@@ -17,7 +17,7 @@
                 "probe_id": "{{ system_user.username }}/uint64/1",
                 "client_id": "{{ system_user.username }}/text/1",
                 "template_ids": "{{ system_user.username }}/array_1d_text/1",
-                "keystroke": "user/atvs_keystroke/1"
+                "keystroke": "{{ user.username }}/atvs_keystroke/1"
             }
         }
     ]