[CT-2839] Add `triage` and `stale` actions to dbt packages

[dbeatty10]

### Triage
- [ ] https://github.com/dbt-labs/dbt-utils/pull/812
- [ ] https://github.com/dbt-labs/dbt-codegen/pull/133
- [ ] https://github.com/dbt-labs/dbt-external-tables/pull/223
- [ ] https://github.com/dbt-labs/dbt-audit-helper/pull/78
- [ ] https://github.com/dbt-labs/dbt-project-evaluator/pull/361

### Stale
- [ ] https://github.com/dbt-labs/dbt-utils/pull/813
- [ ] https://github.com/dbt-labs/dbt-codegen/pull/134
- [ ] https://github.com/dbt-labs/dbt-external-tables/pull/224
- [ ] https://github.com/dbt-labs/dbt-audit-helper/pull/79
- [ ] https://github.com/dbt-labs/dbt-project-evaluator/pull/360