deps(deps): bump nuget/setup-nuget from 3 to 4 (#601)

Bumps [nuget/setup-nuget](https://github.com/nuget/setup-nuget) from 3 to 4.
- [Release notes](https://github.com/nuget/setup-nuget/releases)
- [Commits](NuGet/setup-nuget@v3...v4)

---
updated-dependencies:
- dependency-name: nuget/setup-nuget
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/RocketModFix.Unturned.Redist.Matrix.yaml

@@ -101,7 +101,7 @@ jobs:
 
     - name: Setup NuGet
       if: steps.check.outputs.should_run == 'true'
-      uses: nuget/setup-nuget@v3
+      uses: nuget/setup-nuget@v4
       with:
         nuget-api-key: ${{ secrets.NUGET_DEPLOY_KEY }}