Update github actions (major)

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	v2 -> v4
actions/setup-dotnet	action	major	v1 -> v3

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Release Notes

actions/checkout (actions/checkout)

v4

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• Support fetching without the --progress option
• Update to node20

v3

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• Fix: Mark test scripts with Bash'isms to be run via Bash
• Add option to fetch tags even if fetch-depth > 0

actions/setup-dotnet (actions/setup-dotnet)

v3

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v2

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