Add TOTP header to Swagger Documentation (#12402)

templates/swagger/v1_json.tmpl

@@ -15551,6 +15551,12 @@
       "name": "sudo",
       "in": "query"
     },
+    "TOTPHeader": {
+      "description": "Must be used in combination with BasicAuth if two-factor authentication is enabled.",
+      "type": "apiKey",
+      "name": "X-GITEA-OTP",
+      "in": "header"
+    },
     "Token": {
       "type": "apiKey",
       "name": "token",
@@ -15575,6 +15581,9 @@
     },
     {
       "SudoHeader": []
+    },
+    {
+      "TOTPHeader": []
     }
   ]
 }