chore: first pass of cleanup org-members

[rjan90]

Summary

A quick first-pass of cleaning up org-members.

What changed

• Removed stale org-level memberships for users who should no longer be managed as FilOzone org members.
• Removed related stale repo/team access entries for those users where the cleanup intent was clear.
• Removed the unused SpaceMeridian team and its repo team grants.
• Removed unused filecoin-pay-maintainers and filecoin-pin-dev team definitions, since no repositories reference them anymore.
• Removed redundant direct collaborator grants where existing team access already provides the same permission:
  • TippyFlitsUK on filecoin-cloud, covered by filoz-fs admin access.
  • wjmelements on filecoin-pay, covered by filoz-fs maintain access.
• Kept direct repo collaborator access where it appears intentionally separate from org membership, since outside/direct collaborators can still be valid even when they are no longer org members.
• Included the generated config fix updates that re-enabled secret scanning settings for public repositories.

[github-actions]

The following access changes will be introduced as a result of applying the plan:

Access Changes

User aarshkshah1992:
  - will leave the organization
  - will lose admin permission to hotvault-demo
  - will lose maintain permission to pdp
  - will lose maintain permission to synapse-sdk
User bajtos:
  - will leave the organization
  - will lose maintain permission to filecoin-pay-auction-bot
  - will lose push permission to filecoin-pay-explorer
  - will lose push permission to filecoin-services
  - will lose push permission to fs-pm
  - will lose push permission to synapse-sdk
  - will lose push permission to tim-docs
User barbaraperic:
  - will lose push permission to filecoin-cloud
  - will lose push permission to filecoin-pay-explorer
  - will lose push permission to synapse-website
User code-pangolin:
  - will leave the organization
User geomatrick:
  - will lose push permission to dealbot
  - will lose push permission to filecoin-cloud
  - will lose maintain permission to filecoin-pay-auction-bot
  - will lose push permission to filecoin-pay-explorer
  - will lose push permission to filecoin-services
  - will lose admin permission to fs-pm
  - will lose push permission to synapse-sdk
  - will lose push permission to tim-docs
  - will leave the organization
User juliangruber:
  - will lose maintain permission to filecoin-pay-auction-bot
  - will lose push permission to filecoin-pay-explorer
  - will lose push permission to filecoin-services
  - will lose push permission to fs-pm
  - will lose push permission to synapse-sdk
  - will lose push permission to tim-docs
User magik6k:
  - will leave the organization
User mirhamasala:
  - will lose admin permission to filecoin-cloud
  - will lose push permission to synapse-website
User pyropy:
  - will leave the organization
  - will lose push permission to filecoin-pay
  - will lose admin permission to filecoin-pay-auction-bot
  - will lose push permission to filecoin-pay-explorer
  - will lose push permission to filecoin-services
  - will lose push permission to fs-pm
  - will lose pull permission to infra
  - will lose push permission to synapse-sdk
  - will lose push permission to tim-docs
User stebalien:
  - will lose maintain permission to pdp
User virajbhartiya:
  - will lose push permission to hotvault-demo
  - will lose push permission to pdp-explorer
User winter-soren:
  - will lose push permission to hotvault-demo
User filoz-fs:
  - will gain admin permission to filecoin-pay-auction-bot
  - will gain admin permission to hotvault-demo

[rjan90]

CI is failing as expected since we need to do the org-membership removals out-of-band, and then clean Terraform state.