Intermittent ProtocolsQuery grant test failures.

[LiranCohen]

I get the following tests intermittently failing, even on main:
rejects with 401 an external partys attempt to ProtocolsQuery if the grant is not yet active

Noticed on this PR run:
https://github.com/TBD54566975/dwn-sdk-js/actions/runs/5928353825/job/16073770372?pr=480

Tried to re-create on main by re-running tests back to back and was eventually able to trigger the ProtocolsQuery failure on main locally.

I put some logging in before catching it and got the following:

protocolsQueryTimestamp: 2023-08-21T16:14:37.169477Z
dateGranted: 2023-08-21T16:14:37.169477Z

It seems that putting sleep(1) still produces an identical timestamp in some rare cases.
https://github.com/TBD54566975/dwn-sdk-js/blob/5b7ebb836b1c11498a41653a984f930b49823844/tests/handlers/protocols-query.spec.ts#L276C1-L276C1

Will update this to sleep for 2 ms.