update documentation for retiring -module-contributors-bicep teams

[matebarabas]

Overview/Summary

This pull request updates documentation to simplify and clarify the management of GitHub teams for module ownership, focusing on removing references to "contributors" teams and standardizing guidance for "owners" teams only. The changes affect Bicep and Terraform documentation, as well as related process and specification files.

Key documentation and process updates:

GitHub Team Management and Ownership Process

• Updated instructions to require only the creation and management of -owners- GitHub teams for modules, removing references to -contributors- teams throughout the owner contribution flow and triage documentation. This includes changes to team naming conventions, parent team assignments, and steps for transferring or orphaning module ownership. [1] [2] [3] [4] [5]

Module Index and Reference Documentation

• Updated all Bicep module index pages (bicep-resource-modules.md, bicep-pattern-modules.md, bicep-utility-modules.md) to remove references to contributor teams and focus on owner teams in section titles, notices, and expandable content. [1] [2] [3]
• Removed the "For Module Owners & Contributors" sections and related details from all Terraform module index pages to align with the new owner-only team approach. [1] [2] [3]
• Updated cross-references in shared specification files to point to the new owner-centric section anchors in module index documentation.

As part of this Pull Request I have

• Read the Contribution Guide and ensured this PR is compliant with the guide
• Checked for duplicate Pull Requests
• Associated it with relevant GitHub Issues or ADO Work Items (Internal Only)
• Ensured my code/branch is up-to-date with the latest changes in the main branch
• Ensured PR tests are passing
• Updated relevant and associated documentation (e.g. Contribution Guide, Docs etc.)

[matebarabas]

@matt-FFFFFF, can you please provide a blurb explaining how the new rights management approach and group assignment looks like for TF in those two sections where I tagged you? Thanks!

[nirantareamit]

checked each change and did not notice any problem.