Merge pull request #161 from takker99/update-deno-dependencies

Update Deno Dependencies

Author: takker99

deps/testing.ts

@@ -1,2 +1,2 @@
-export * from "https://deno.land/std@0.220.1/testing/asserts.ts";
-export * from "https://deno.land/std@0.220.1/testing/snapshot.ts";
+export * from "https://deno.land/std@0.221.0/testing/asserts.ts";
+export * from "https://deno.land/std@0.221.0/testing/snapshot.ts";