fix: handle depreciations

sonic-radiance.love/birb/utils/math.lua

@@ -94,6 +94,8 @@ function Math.pointDirection(x1,y1,x2,y2)
   local vecx, vecy, angle
   vecy = y2 - y1
   vecx = x2 - x1
+  -- We disable diagnostic to this line as we use LuaJIT 2.0
+  ---@diagnostic disable-next-line: deprecated
   angle = math.atan2(-vecy, vecx)
 
   return angle
@@ -140,11 +142,11 @@ function Math.numberToString(x, length)
   local length = length or 1
   local string = ""
   local x = x
-  if (x >= math.pow(10, length)) then
+  if (x >= (10 ^ length)) then
     string = string .. x
   else
     for i=1, (length-1) do
-      if (x < math.pow(10, length-i)) then
+      if (x < (10 ^ (length-i))) then
         string = string .. "0"
       end
     end