feat(teammemberships): refactor SCIM pkg

[abhijith-darshan]

Description

Currently the Organization controller and TeamMembership controller both use SCIM API to -

1. Validate the provided SCIM Config (Organization Controller)
2. Fetch Members of an IDP Group (TeamMembership Controller)

The SCIM pkg is refactored to reduce the number of calls being made to the SCIM endpoint.

The Organization controller will check if a Group exists by searching for the provided IDP Group and will not attempt to list members as it is not needed

The TeamMembership controller will list all Users for the provided IDP Group (With Pagination)

• Max result of 100 items can be fetched per page

SCIM Pkg is refactored:

• SCIM Client to use Basic Auth Transport as RoundTripper (Future auth mechanisms can be used via Transports instead)
• Pagination is introduced
• QueryParameters as QueryOptions to SCIM API(s)
• Pre-defined Query Parameters

What type of PR is this? (check all applicable)

• 🍕 Feature
• 🐛 Bug Fix
• 📝 Documentation Update
• 🎨 Style
• 🧑‍💻 Code Refactor
• 🔥 Performance Improvements
• ✅ Test
• 🤖 Build
• 🔁 CI
• 📦 Chore (Release)
• ⏩ Revert

Related Tickets & Documents

Added tests?

• 👍 yes
• 🙅 no, because they aren't needed
• 🙋 no, because I need help
• Separate ticket for tests # (issue/pr)

Unit Tests are added and subsequent unit tests for Organization and TeamMembership is updated

Added to documentation?

• 📜 README.md
• 🤝 Documentation pages updated
• 🙅 no documentation needed
• (if applicable) generated OpenAPI docs for CRD changes

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• New and existing unit tests pass locally with my changes