Function roll_rarity_with_minimum

pub fn roll_rarity_with_minimum(
    config: &GameConfig,
    level_settings: &PetCasesSettingsByLevel,
    min_rarity_id: PetRarityId,
    rng: &mut StdRng,
) -> Result<PetRarityId>

Roll a rarity from the level’s weights, but exclude rarities below min_rarity_id. The “order” field on PetRarity determines the ordering (higher = rarer).