⬆️ update deno dependencies

Author: web-flow

deps/testing.ts

@@ -1,2 +1,2 @@
-export * from "https://deno.land/std@0.208.0/testing/asserts.ts";
-export * from "https://deno.land/std@0.208.0/testing/snapshot.ts";
+export * from "https://deno.land/std@0.209.0/testing/asserts.ts";
+export * from "https://deno.land/std@0.209.0/testing/snapshot.ts";