Update mstest monorepo to 3.7.3 (#300)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

tests/CacheTower.Tests/CacheTower.Tests.csproj

@@ -9,8 +9,8 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="6.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.0" />
-    <PackageReference Include="MSTest.TestAdapter" Version="3.1.1" />
-    <PackageReference Include="MSTest.TestFramework" Version="3.1.1" />
+    <PackageReference Include="MSTest.TestAdapter" Version="3.7.3" />
+    <PackageReference Include="MSTest.TestFramework" Version="3.7.3" />
     <PackageReference Include="coverlet.collector" Version="6.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>