refactor: rename file to match class name

Author: eseidel

packages/cli/bin/shipyard_prices.dart

@@ -1,5 +1,5 @@
 import 'package:cli/cache/shipyard_listing_snapshot.dart';
-import 'package:cli/cache/shipyard_prices.dart';
+import 'package:cli/cache/shipyard_price_snapshot.dart';
 import 'package:cli/cache/static_cache.dart';
 import 'package:cli/cli.dart';
 import 'package:cli/printing.dart';

packages/cli/lib/cache/caches.dart

@@ -35,7 +35,7 @@ export 'package:cli/cache/market_listing_snapshot.dart';
 export 'package:cli/cache/market_price_snapshot.dart';
 export 'package:cli/cache/ship_snapshot.dart';
 export 'package:cli/cache/shipyard_listing_snapshot.dart';
-export 'package:cli/cache/shipyard_prices.dart';
+export 'package:cli/cache/shipyard_price_snapshot.dart';
 export 'package:cli/cache/static_cache.dart';
 export 'package:cli/cache/systems_cache.dart';
 export 'package:cli/cache/waypoint_cache.dart';