chore(workflows): pin dependencies

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	pinDigest	-> 8e5e7e5
actions/setup-node	action	pinDigest	-> 64ed1c7
rinchsan/renovate-config-validator	action	pinDigest	-> 1ea1e85

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.

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• [ ] If you want to rebase/retry this PR, check this box

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