added a new attribute sid to fetch the user details using sid

[AnikaAgiwal2711]

Description

This is related to the issue where a user is not able to create filesystems using sid.
I've added an attribute sid to the user datasource, so that now user can get the uid using sid and then use that uid in the fileystem to create it.

GitHub Issues

List the GitHub issues impacted by this PR:

GitHub Issue #

ISSUE TYPE

• Bugfix Pull Request
• Docs Pull Request
• Feature Pull Request
• Test Pull Request

RESOURCE OR DATASOURCE NAME

OUTPUT

ADDITIONAL INFORMATION

Checklist:

• I have performed a self-review of my own code to ensure there are no formatting, vetting, linting, or security issues
• I have verified that new and existing unit tests pass locally with my changes
• I have not allowed coverage numbers to degenerate
• I have maintained at least 80% code coverage
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I have maintained backward compatibility

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Please also list any relevant details for your test configuration

• Acceptance tests

[rounak-adhikary]

LGTM. But we need to add tests (mocked tests should do fine).

[rounak-adhikary]

Actually, looks like coverage will not be affected by the acceptance tests.