fix: remove version from rest api payload

[sidhujus]

Which issue(s) does this change fix?

#6442

Why is this change necessary?

Currently the v1 payload is used for both http API's that specify v1 and for REST api's, which is technically wrong since the REST payload does not contain the version field (but is identical in every other aspect that I checked)

How does it address the issue?

adds an extra parameter to the init method that specifies which type of api is being used.

What side effects does this change have?

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.

[sidhujus]

https://github.com/aws/aws-sam-cli/pull/6532/files#diff-1cea545ee08253b7df8b2edd1e1809613a5e05666c2e7609e89aa036920651f6R372

I couldn't find anything related to where this is used or whether by v1 we are referring to REST apis or v1 HTTP api payloads