Something wrong with GetCategoryNumAchievements

[Etern213]

According to https://warcraft.wiki.gg/wiki/API_GetCategoryNumAchievements

total, completed, incompleted = GetCategoryNumAchievements(categoryId[, includeAll])

includeAll can be nil

so maybe we should change

---[Documentation](https://warcraft.wiki.gg/wiki/API_GetCategoryNumAchievements)
---@param categoryId number
---@param includeAll boolean
---@return number total
---@return number completed
---@return number incompleted
function GetCategoryNumAchievements(categoryId, includeAll) end

to

---[Documentation](https://warcraft.wiki.gg/wiki/API_GetCategoryNumAchievements)
---@param categoryId number
---@param includeAll boolean?
---@return number total
---@return number completed
---@return number incompleted
function GetCategoryNumAchievements(categoryId, includeAll) end