More ruff linter fixes

server/handlers/api/spots.py

@@ -153,7 +153,7 @@ def get_spot_list_with_filters(all_spots, query):
             spots.append(s)
     spots = sorted(spots, key=lambda spot: spot.time if spot and spot.time else 0, reverse=True)
     spots = list(filter(lambda spot: spot_allowed_by_query(spot, query), spots))
-    if "limit" in query.keys():
+    if "limit" in query:
         spots = spots[: int(query.get("limit"))]
 
     # Ensure only the latest spot of each callsign-SSID combo is present in the list. This relies on the
@@ -163,7 +163,7 @@ def get_spot_list_with_filters(all_spots, query):
     # This is a special consideration for the geo map and band map views (and Field Spotter) because while
     # duplicates are fine in the main spot list (e.g. different cluster spots of the same DX) this doesn't
     # work well for the other views.
-    if "dedupe" in query.keys():
+    if "dedupe" in query:
         dedupe = query.get("dedupe").upper() == "TRUE"
         if dedupe:
             spots_temp = []
@@ -182,7 +182,7 @@ def spot_allowed_by_query(spot, query):
     """Given URL query params and a spot, figure out if the spot "passes" the requested filters or is rejected. The list
     of query parameters and their function is defined in the API docs."""
 
-    for k in query.keys():
+    for k in query:
         match k:
             case "since":
                 since = datetime.fromtimestamp(int(query.get(k)), pytz.UTC).timestamp()