fix(ci): switch to permissionless reusable workflow

[hyperpolymath]

Summary

Changes

RSR Quality Checklist

Required

• Tests pass (just test or equivalent)
• Code is formatted (just fmt or equivalent)
• Linter is clean (no new warnings or errors)
• No banned language patterns (no TypeScript, no npm/bun, no Go/Python)
• No unsafe blocks without // SAFETY: comments
• No banned functions (believe_me, unsafeCoerce, Obj.magic, Admitted, sorry)
• SPDX license headers present on all new/modified source files
• No secrets, credentials, or .env files included

As Applicable

• .machine_readable/6a2/STATE.a2ml updated (if project state changed)
• .machine_readable/6a2/ECOSYSTEM.a2ml updated (if integrations changed)
• .machine_readable/6a2/META.a2ml updated (if architectural decisions changed)
• Documentation updated for user-facing changes
• TOPOLOGY.md updated (if architecture changed)
• CHANGELOG or release notes updated
• New dependencies reviewed for license compatibility (MPL-2.0 / MPL-2.0)
• ABI/FFI changes validated (src/interface/abi/ and src/interface/ffi/ consistent)

Testing

Screenshots

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Summary by Gitar

• CI Workflows:
  • Updated secret-scanner.yml to use permissionless reusable workflow and updated reusable workflow reference

_{This will update automatically on new commits.}

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

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Code Review ✅ Approved

Switches the secret scanner CI workflow to a permissionless reusable reference and applies estate-wide structural fixes. No issues found.

Auto-approved and auto-merge armed: No blocking issues found.
Please see Auto-approve Docs for details on setting custom approval criteria. — merges when pipeline and required approvals pass.

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