Bump MSTest.TestFramework from 2.2.7 to 2.2.8

Bumps [MSTest.TestFramework](https://github.com/microsoft/testfx) from 2.2.7 to 2.2.8.
- [Release notes](https://github.com/microsoft/testfx/releases)
- [Commits](https://github.com/microsoft/testfx/commits)

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

test/NosCore.Algorithm.Tests/NosCore.Algorithm.Tests.csproj

@@ -15,7 +15,7 @@
     <PackageReference Include="ApprovalTests" Version="5.7.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="2.2.7" />
-    <PackageReference Include="MSTest.TestFramework" Version="2.2.7" />
+    <PackageReference Include="MSTest.TestFramework" Version="2.2.8" />
     <PackageReference Include="coverlet.collector" Version="3.1.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>