Update dependency flutter to v3.16.5

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
flutter (source)	patch	3.16.4 -> 3.16.5

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Release Notes

flutter/flutter (flutter)

### [`v3.16.5`](https://togithub.com/flutter/flutter/compare/3.16.4...3.16.5) [Compare Source](https://togithub.com/flutter/flutter/compare/3.16.4...3.16.5)

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Configuration

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🚦 Automerge: Enabled.

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🔕 Ignore: Close this PR and you won't be reminded about this update again.

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