Update actions/setup-python action to v5

[balena-renovate[bot]]

This PR contains the following updates:

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

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Release Notes

actions/setup-python (actions/setup-python)

### [`v5`](https://togithub.com/actions/setup-python/compare/v4...v5) [Compare Source](https://togithub.com/actions/setup-python/compare/v4...v5)

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Configuration

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