chore(github): complete pdp-explorer access handover

[rjan90]

Summary

• remove the StorSwift team's maintain access from pdp-explorer
• grant the filoz-fs team push access alongside foc-wg-eng
• retain silent-cipher at the existing maintain role

Why do you need this?

This completes the remaining GitHub permissions handover described in the FOC WG PDP Explorer maintenance plan. The public deployment, Goldsky subgraphs, release automation, and monitoring are already operational.

The maintain role is sufficient for repository Actions secrets and releases. Organization owners retain admin access for sensitive repository settings such as access management and rulesets, so this PR does not increase an individual collaborator to admin.

Closes FilOzone/infra#339

[github-actions]

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

Access Changes

User irenegia:
  - will gain push permission to pdp-explorer
User jennijuju:
  - will gain push permission to pdp-explorer
User kaola526:
  - will lose maintain permission to pdp-explorer
User lucaniz:
  - will gain push permission to pdp-explorer
User macro-ss:
  - will lose maintain permission to pdp-explorer
User momack2:
  - will gain push permission to pdp-explorer

[github-actions]

Before merge, verify that all the following plans are correct. After merge, Apply will regenerate the plans from the merged commit and continue only if they match.

Terraform plans

FilOzone

Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
  + create
  - destroy

Terraform will perform the following actions:

  # github_team_repository.this["filoz-fs:pdp-explorer"] will be created
  + resource "github_team_repository" "this" {
      + etag       = (known after apply)
      + id         = (known after apply)
      + permission = "push"
      + repository = "pdp-explorer"
      + team_id    = "13124042"
    }

  # github_team_repository.this["storswift:pdp-explorer"] will be destroyed
  # (because key ["storswift:pdp-explorer"] is not in for_each map)
  - resource "github_team_repository" "this" {
      - etag       = "W/\"8ffc74f399e563204869903d9dbf4cb442bde5d04ce5b102aa90d6451bb19c25\"" -> null
      - id         = "13327704:pdp-explorer" -> null
      - permission = "maintain" -> null
      - repository = "pdp-explorer" -> null
      - team_id    = "13327704" -> null
    }

Plan: 1 to add, 0 to change, 1 to destroy.