Updated to 1.20.5

Summary:

• Add new task subcommand
• Add new bench subcommand
• Add support for AbortSignal.timeout()
• Upgrade typescript to 4.6
• Update V8 engine to 10

Test Plan: After install run deno run https://deno.land/std/examples/welcome.ts

Reviewers: Triage Team, algent

Reviewed By: Triage Team, algent

Subscribers: algent

Differential Revision: https://dev.getsol.us/D13122