Bump Microsoft.NET.Test.Sdk, Moq, xunit and xunit.runner.visualstudio (#149)

Performed the following updates:
- Updated Microsoft.NET.Test.Sdk from 17.13.0 to 17.14.1 in
/Directory.Build.props, /Directory.Packages.props,
/IntelliTect.Multitool.Tests/IntelliTect.Multitool.Tests.csproj,
/IntelliTect.Multitool/Build/IntelliTect.Multitool.targets
- Updated Moq from 4.20.70 to 4.20.72 in /Directory.Build.props,
/Directory.Packages.props,
/IntelliTect.Multitool.Tests/IntelliTect.Multitool.Tests.csproj,
/IntelliTect.Multitool/Build/IntelliTect.Multitool.targets
- Updated xunit from 2.9.0 to 2.9.3 in /Directory.Build.props,
/Directory.Packages.props,
/IntelliTect.Multitool.Tests/IntelliTect.Multitool.Tests.csproj,
/IntelliTect.Multitool/Build/IntelliTect.Multitool.targets
- Updated xunit.runner.visualstudio from 2.8.1 to 3.1.1 in
/Directory.Build.props, /Directory.Packages.props,
/IntelliTect.Multitool.Tests/IntelliTect.Multitool.Tests.csproj,
/IntelliTect.Multitool/Build/IntelliTect.Multitool.targets

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Directory.Packages.props

@@ -5,10 +5,10 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageVersion Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="9.0.0" />
-    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
-    <PackageVersion Include="Moq" Version="4.20.70" />
-    <PackageVersion Include="xunit" Version="2.9.0" />
-    <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.1" />
+    <PackageVersion Include="Moq" Version="4.20.72" />
+    <PackageVersion Include="xunit" Version="2.9.3" />
+    <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.1" />
   </ItemGroup>
 </Project>