(deps): Bump Microsoft.NET.Test.Sdk from 17.3.0 to 17.3.1

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] <support@github.com>

Author: dependabot[bot]

src/Directory.Build.props

@@ -39,7 +39,7 @@
         <PackageVersion_MicrosoftTextEncoding>6.0.0</PackageVersion_MicrosoftTextEncoding>
         <PackageVersion_MsBuild>17.2.0</PackageVersion_MsBuild>
 
-        <PackageVersion_MicrosoftTestSdk>17.3.0</PackageVersion_MicrosoftTestSdk>
+        <PackageVersion_MicrosoftTestSdk>17.3.1</PackageVersion_MicrosoftTestSdk>
         <PackageVersion_NSubstitute>4.4.0</PackageVersion_NSubstitute>
         <PackageVersion_CoverletMsBuild>3.1.2</PackageVersion_CoverletMsBuild>
         <PackageVersion_NUnit>3.13.3</PackageVersion_NUnit>