Bump Microsoft.NET.Test.Sdk from 17.3.0 to 17.3.1 (#156)

Bumps [Microsoft.NET.Test.Sdk](https://github.com/microsoft/vstest) from 17.3.0 to 17.3.1.
- [Release notes](https://github.com/microsoft/vstest/releases)
- [Commits](microsoft/vstest@v17.3.0...v17.3.1)

---
updated-dependencies:
- dependency-name: Microsoft.NET.Test.Sdk
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

Directory.Packages.props

@@ -5,7 +5,7 @@
     <ItemGroup>
         <PackageVersion Include="Microsoft.Build.Utilities.Core" Version="17.2.0" />
         <PackageVersion Include="Microsoft.Build" Version="17.2.0" />
-        <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.3.0" />
+        <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.3.1" />
         <PackageVersion Include="Microsoft.VisualStudioEng.MicroBuild.Core" Version="1.0.0" />
         <PackageVersion Include="MSTest.TestAdapter" Version="2.2.10" />
         <PackageVersion Include="MSTest.TestFramework" Version="2.2.10" />