[@hono/oauth-providers/google] Add ability to pass access_type when requesting a token

[aaronware]

Users do not have the ability to set access_type=offline when implementing oauth

[aaronware]

Added a pull request for this but I don't entirely understand how I could actually test it when my fork wasn't actually part of the project? I tried to do a npm link and that helps me locally but not sure how to test this in the context of a worker and a common workflow. Any shove in the right direction for proper testing would be greatly appreciated.