ci: T8966: exempt bots from product T-ID (invalid-task-id) gate

[andamasov]

Adds the blessed 3-condition bot exclusion to this repo's product T-ID rule so bot PRs aren't gated by the T-ID convention, per T8966. Uniform across all product repos.

🤖 Generated by robots

[coderabbitai]

Caution

Review failed

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository YAML (base), Central YAML (inherited), Organization UI (inherited)

Review profile: CHILL

Plan: Pro

Run ID: 2970319e-51be-4888-ab05-98adf65430d5

📥 Commits

Reviewing files that changed from the base of the PR and between e4b03ea and 1e975db.

📒 Files selected for processing (1)

• .github/mergify.yml

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📝 Walkthrough

Summary by CodeRabbit

• Chores
  • Updated PR validation configuration to exclude automated bot accounts from standard validation requirements. This allows automated development tools and workflows to operate with greater flexibility while maintaining consistent validation standards for all human-authored contributions.

Walkthrough

Mergify T-ID validation rule extended with author-based exemptions. Bot-suffixed authors, copilot-swe-agent, and vyosbot are now excluded from invalid-task-id labeling when PR titles or commit messages lack T<digits>: convention.

Changes

T-ID validation author filters

Layer / File(s)	Summary
T-ID validation author filters .github/mergify.yml	Invalid-task-id labeling rule adds conditions to exclude authors matching bot suffix regex, copilot-swe-agent, and vyosbot from task-ID validation.

Possibly related PRs

• vyos/vyos-cloud-init#97: Modifies the same .github/mergify.yml file for T-ID validation rule structure and author exclusions.
• vyos/vyos-cloud-init#110: Introduces the initial T-ID validation rule that this PR refines with author-based exemptions.

✨ Finishing Touches

✨ Simplify code

• Create PR with simplified code
• Commit simplified code in branch feat/T8966-botexcl-tid

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[mergify]

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🟢 📃 Configuration Change Requirements

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Mergify configuration change

• check-success = Configuration changed