feat: expand seasonal creature collection

fish/species/turtle_loggerhead/turtle_loggerhead.tres

@@ -16,6 +16,7 @@ active = false
 catalog_number = 6204
 collection_group = &"Sea turtles"
 logbook_fact = "loggerhead sea turtles crush crabs and mollusks with massive jaws. females often return near their birth beaches to nest."
+available_seasons = 6
 allowed_water_types = 2
 rarity = 4
 base_catch_weight = 0.016