Bump MSTest.TestFramework from 3.0.4 to 3.1.1 (#43)

Bumps [MSTest.TestFramework](https://github.com/microsoft/testfx) from 3.0.4 to 3.1.1.
- [Release notes](https://github.com/microsoft/testfx/releases)
- [Changelog](https://github.com/microsoft/testfx/blob/main/docs/Changelog.md)
- [Commits](microsoft/testfx@v3.0.4...v3.1.1)

---
updated-dependencies:
- dependency-name: MSTest.TestFramework
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

PCAxis.Sql.UnitTest/PCAxis.Sql.UnitTest.csproj

@@ -9,7 +9,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.3" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.0.4" />
-    <PackageReference Include="MSTest.TestFramework" Version="3.0.4" />
+    <PackageReference Include="MSTest.TestFramework" Version="3.1.1" />
     <PackageReference Include="coverlet.collector" Version="6.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>