Fixed a rare bug with locals() being changed during iteration

src/pyrmv/raw/board_arrival.py

@@ -64,7 +64,7 @@ def board_arrival(
     payload = {}
     headers = {"Accept": "application/json"} if json else {"Accept": "application/xml"}
 
-    for var, val in locals().items():
+    for var, val in locals().copy().items():
         if str(var) == "date":
             if val != None:
                 if isinstance(val, datetime):