ci: Update `actions/checkout` version #33171

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

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Code Coverage & Benchmarks

For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/33171.

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ACK f83c01d8824e66a7aeb987911332a06689a06d59

Change is limited to upgrading actions/checkout from v4 to v5. Verified upstream v5 release. All CI jobs pass.

Seems ok. Looks like the only change in v5 is to use node.js 24 instead of 20.

All the actions/checkouts in this file were updated. <strike>Not sure what repo/software handles the cache/restore/save actions.</strike>

Not sure what repo/software handles the cache/restore/save actions.

I think you can find those under https://github.com/actions/cache

ACK f83c01d8824e66a7aeb987911332a06689a06d59

PR updates the CI github actions/checkout to V5.

(upsteam V5 seems limited to new node version).

CI still works , does not seem to break anything. LGTM

ACK f83c01d8

Simple update of actions/checkout from v4 to v5 across all CI workflow steps. CI checks are passing, confirming compatibility with the updated action version.