chore(deps): update actions/checkout action to v5

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	v4 -> v5

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Release Notes

actions/checkout (actions/checkout)

v5

Compare Source

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Configuration

📅 Schedule: Branch creation - Only on Sunday and Saturday ( * * * * 0,6 ) (UTC), 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.

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[github-actions]

PR checklist

Checklist:

• Is the name of this app/solution still Entitlement Analyzer?
• Have you updated the version tag in each .qvf file, and followed semantic versioning (e.g. v1.1.1)?
• Is this PR named appropriately? For example:
  • Feature release: feat: add sheet usage event
  • Bug fix: fix: replaced deprecated events
  • Documentation update: docs: updated images in install guide
• Have you reviewed the unbuilt diff generated by the workflow in /diff?

If you wish to merge and release:

• Have this PR approved by a code owner, then merge into main
• Go to releases, an action will generate a draft release with all files in /assets, and any external assets references in release.json
• Make any updates, then submit the release

Common issues:

• After merging, draft release doesn't update - this is usually because
  the action failed due to an old draft release with the same name.
  Delete the draft release, and re-run the action.