fix: consider parameter overrides during sam sync

[bentvelj]

Which issue(s) does this change fix?

#6172

Why is this change necessary?

sam sync did not consider parameter overrides when detecting changes. This leads to unexpected behaviour when the customer will set new parameter overrides when starting a sync, but their stack will behave with the old parameters.

How does it address the issue?

When deciding whether or not to skip infra sync, we now ensure that parameter_overrides ⊆ stack parameters. Otherwise, sync infrastructure.

What side effects does this change have?

N/A

Mandatory Checklist

PRs will only be reviewed after checklist is complete

• Add input/output type hints to new functions/methods
• Write design document if needed (Do I need to write a design document?)
• Write/update unit tests
• Write/update integration tests
• Write/update functional tests if needed
• make pr passes
• make update-reproducible-reqs if dependencies were changed
• Write documentation

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.