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Pavel ZemanandClaude 9c8191c3b8 ci: add yamllint workflow to detect duplicate YAML keys (#36010)
* ci: add yamllint workflow to detect duplicate YAML keys

Add a yamllint check for workflow files to catch duplicate keys that
YAML parsers silently accept but GitHub Actions rejects on the default
branch.

Release Note
NONE

Co-authored-by: Claude <claude@anthropic.com>

* ci: address review feedback on yamllint workflow

- Add permissions: contents: read (least privilege)
- Bump checkout to v6.0.2 with persist-credentials: false
- Remove pip install step (yamllint is pre-installed on ubuntu-22.04)

Co-authored-by: Claude <claude@anthropic.com>

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Co-authored-by: Claude <claude@anthropic.com>
2026-04-20 17:25:12 -04:00

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extends: default
rules:
key-duplicates: enable
empty-lines: disable
line-length: disable
trailing-spaces: disable