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

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1. .github/workflows/release.yml:16

• Draft comment:
  Updating the checkout action from v4 to v5. Please verify that v5’s default behavior (especially regarding shallow clones) still meets the workflow’s needs. If defaults changed, you might need to adjust the fetch-depth or remove the 'Unshallow clone' step.
• Reason this comment was not posted:
  Confidence changes required: 50% <= threshold 50% None

Workflow ID: wflow_PXFB1ln7SN6zRZFc

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