deno 2 - one more vendor dep

Author: cscheid

src/vendor_deps.ts

@@ -10,3 +10,4 @@ This is only used by vendor.sh and should not be imported by any other code.
 // for puppeteer
 import { dirname, join, SEP } from "https://deno.land/std@0.93.0/path/mod.ts";
 import puppeteer from "https://deno.land/x/puppeteer@9.0.2/mod.ts";
+import * as base64 from "https://deno.land/std@0.93.0/encoding/base64.ts";