check_send_receive_time: Move "states" to inside where they are used.

puppet/zulip/files/nagios_plugins/zulip_app_frontend/check_send_receive_time

@@ -45,15 +45,15 @@ parser.add_argument("--insecure", action="store_true")
 
 options = parser.parse_args()
 
-states = {
-    "OK": 0,
-    "WARNING": 1,
-    "CRITICAL": 2,
-    "UNKNOWN": 3,
-}
-
 
 def report(state: str, timestamp: Any = None, msg: Optional[str] = None) -> NoReturn:
+    states = {
+        "OK": 0,
+        "WARNING": 1,
+        "CRITICAL": 2,
+        "UNKNOWN": 3,
+    }
+
     now = int(time.time())
     if msg is None:
         msg = f"send time was {timestamp}"