Update dependency Microsoft.NET.Test.Sdk to v16.4.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
Microsoft.NET.Test.Sdk	nuget	minor	16.3.0 -> 16.4.0

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docker pull tomkerkhove/promitor-agent-scraper-ci:pr765

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                         tomkerkhove/promitor-agent-scraper-ci:pr765

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