Update dependency xunit.runner.visualstudio to 3.1.2

Author: renovate[bot]

src/UnitTests/UnitTests.csproj

@@ -25,7 +25,7 @@
     <PackageReference Include="Moq" Version="4.20.72" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.2" />
   </ItemGroup>
 
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