chore(deps): upgrade dev dependencies (#491)

Upgrades project dependencies. See details in [workflow run].

[Workflow Run]:
https://github.com/cdklabs/awscdk-lambda-dotnet/actions/runs/14504983267

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*Automatically created by projen via the "upgrade-dev-deps-main"
workflow*

Signed-off-by: github-actions <[email protected]>
Co-authored-by: github-actions <[email protected]>

Author: aws-cdk-automation