build: update checkout action to v5

[rejected-l]

Bumps checkout to v5 for future-proofing against Node 24 runner updates. Requires runner v2.327.1+. Workflows compile the same.

More info: https://github.com/actions/checkout/releases/tag/v5.0.0

---

Important

Update actions/checkout to v5 in workflows for future-proofing against Node 24 runner updates.

• Workflows:
  • Update actions/checkout to v5 in ci.yaml and update-feature-gates.yml for future-proofing against Node 24 runner updates.
  • Requires runner v2.327.1+.
• Behavior:
  • Workflows compile the same with no changes to steps or logic.

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[vercel]

@rejected-l is attempting to deploy a commit to the Solana Foundation Team on Vercel.

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[ellipsis-dev]

Important

Looks good to me! 👍

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1. .github/workflows/ci.yaml:25

• Draft comment:
  Upgrade to checkout@v5; verify its defaults (e.g. fetch-depth) are as expected.
• Reason this comment was not posted:
  Confidence changes required: 33% <= threshold 50% None

2. .github/workflows/update-feature-gates.yml:15

• Draft comment:
  Upgrade to checkout@v5; ensure the new defaults don’t alter workflow behavior.
• Reason this comment was not posted:
  Confidence changes required: 33% <= threshold 50% None

Workflow ID: wflow_BZKVlLKGX98VqOTl

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