This PR updates the `fetch_image_for_layout` function to include missing
security-related request settings:
- `insecure_requests_policy`
- `has_trustworthy_ancestor_origin`
- `policy_container`
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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#36591
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- [X] There are tests for these changes
Signed-off-by: Emmanuel Elom <elomemmanuel007@gmail.com>