Bump NUnit3TestAdapter from 4.5.0 to 6.2.0 (#1120)

---
updated-dependencies:
- dependency-name: NUnit3TestAdapter
  dependency-version: 6.2.0
  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>
Co-authored-by: Don Syme <dsyme@users.noreply.github.com>

Author: dependabot[bot]

Directory.Packages.props

@@ -22,7 +22,7 @@
     <PackageVersion Include="NUnit" Version="4.5.1" />
     <PackageVersion Include="FsUnit" Version="7.1.1" />
     <PackageVersion Include="FSharp.Data" Version="8.1.3" />
-    <PackageVersion Include="NUnit3TestAdapter" Version="4.5.0" />
+    <PackageVersion Include="NUnit3TestAdapter" Version="6.2.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
     <PackageVersion Include="Ionide.KeepAChangelog.Tasks" Version="0.1.8" />
     <PackageVersion Include="G-Research.FSharp.Analyzers" Version="0.22.0" />