fix: change fern.yml to docs.yml in 5.26.0 changelog entry

[Ryan-Amirthan]

Summary

Fix typo in the 5.26.0 CLI changelog entry: fern.yml → docs.yml. The fern docs link check command auto-detects from docs.yml, not fern.yml.

Review & Testing Checklist for Human

• Verify the rendered changelog at /learn/cli-api-reference/cli-reference/changelog#2026-05-14-5260 shows docs.yml

Link to Devin session: https://app.devin.ai/sessions/523bc7ee373141128f7eae98bcf71d21
Requested by: @Ryan-Amirthan

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[github-actions]

🌿 Preview your docs: https://fern-preview-devin-1778790426-fix-changelog-fern-yml-typo.docs.buildwithfern.com/learn

Here are the markdown pages you've updated:

• learn/cli-api-reference/cli-reference/changelog/2026/5/14