fix(oas): preserve stable id on operations

[brendarearden]

Motivation and Context

https://github.com/stoplightio/platform-internal/issues/16924

Description

used existing function to extract stable id if it exists for operations and callbacks.

callbacks are not supported in the UI but would have the same issue as operations on path rename.

How Has This Been Tested?

Added automation test

Screenshot(s)/recordings(s)

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• [ ] This PR's code follows as closely as possible the coding style/guidelines of this project.
• [ ] I have added error reporting and followed the error reporting guidelines.
• [ ] I have added event tracking and followed the event tracking guidelines.
• [ ] I have updated any relevant documentation accordingly to reflect this PR's changes.
• [ ] I have added automated tests (unit/integration/e2e/other) to cover my changes.
• [ ] All new and existing tests pass locally (excluding flaky CI tests).

[stoplight-bot]

:tada: This PR is included in version 5.9.6 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: