Add SBOM gen flag to repository struture

[rocktavious]

Resolves #

Problem

SBOM generation can be configured on repository update but the response type doesn't tell you the details

Solution

The response type for Repository is not code gen'd yet so we have to manually added this

Checklist

• I have run this code, and it appears to resolve the stated issue.
• This PR does not reduce total test coverage
• This PR has no user interface changes or has already received approval from product management to change the interface.
• Does this change require a Terraform schema change?
  • If so what is the ticket or PR #
• Make a changie entry that explains the customer facing outcome of this change