feat: add flags of ic-gateway to pocket-ic to disable the authority check and enable local file provider

[shilingwang]

#Node-1867

We recently added 2 new features in ic-gateway:

1. A new custom domains provider: local file provider, which allows using a local file to provide the custom domains.
2. Disable the authority check on validate middleware. We found the limitation when updating the pocketic version in the ic-gateway repo. It is not easy/very useful for testing environment to make the authority check especially pocketic always process the request from ic-gateway first regardless of where the request is from.

This PR introduced these 2 flags to pocket-ic.

[github-actions]

This pull request changes code owned by the Governance team. Therefore, make sure that
you have considered the following (for Governance-owned code):

1. Update unreleased_changelog.md (if there are behavior changes, even if they are
   non-breaking).

2. Are there BREAKING changes?

3. Is a data migration needed?

4. Security review?

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Brief Guide to "Externally Visible" Changes

"Externally visible behavior change" is very often due to some NEW canister API.

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If these changes are breaking, make sure that clients know how to migrate, how to
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Reference(s)

For a more comprehensive checklist, see here.

GOVERNANCE_CHECKLIST_REMINDER_DEDUP

Only update the version of ic-gateway and the changes are only on pocketic.