update deps

Hi Binyamin,

I tried to upgrade my lume, but it breaks cause it has switched deps to the npm:sass@1.59.3, which does not support @use and @forward on deno (or at least I couldn't get it work). Can you please upgrade the deps and release a new version, so I can switch back to your module.

Currently I'm getting the error, when trying to use with deno 1.35.3:

TypeError: Module not found "https://esm.sh/v99/immutable@4.1.0/deno/immutable.js".
    at https://denopkg.dev/gl/@gitlab.com/binyamin/deno-sass@v1.56.1/out/sass.min.js:1:350
    at async createSite (https://deno.land/x/lume@v1.18.3/cli/run.ts:50:17)
    at async build (https://deno.land/x/lume@v1.18.3/cli/build.ts:33:16)
    at async Command.execute (https://deno.land/x/cliffy@v0.25.7/command/command.ts:1794:7)
    at async Command.parseCommand (https://deno.land/x/cliffy@v0.25.7/command/command.ts:1639:14)
    at async (https://deno.land/x/lume@v1.18.3/cli.ts:135:3)

when I try to use v1.56.1:

import sass from "https://denopkg.dev/gl/@gitlab.com/binyamin/deno-sass@v1.56.1/mod.ts";

Thanks