IDB WPTs: Extend idbdatabase.createObjectStore() tests to workers

The update modifies idbdatabase_createObjectStore related WPTs to run not only
in window environments but also on dedicated, service, and shared
workers.

Bug: 41455766
Change-Id: Ic221c395549556f790958802a8a8a3430c7ecb7e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5912633
Commit-Queue: Rahul Singh <rahsin@microsoft.com>
Reviewed-by: Steve Becker <stevebe@microsoft.com>
Reviewed-by: Rahul Singh <rahsin@microsoft.com>
Auto-Submit: Garima Chadha <garimachadha@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#1406879}