Bump the mstest group with 2 updates

Bumps the mstest group with 2 updates: [MSTest.TestAdapter](https://github.com/microsoft/testfx) and [MSTest.TestFramework](https://github.com/microsoft/testfx).


Updates `MSTest.TestAdapter` from 3.7.1 to 3.7.3
- [Release notes](https://github.com/microsoft/testfx/releases)
- [Changelog](https://github.com/microsoft/testfx/blob/main/docs/Changelog.md)
- [Commits](microsoft/testfx@v3.7.1...v3.7.3)

Updates `MSTest.TestFramework` from 3.7.1 to 3.7.3
- [Release notes](https://github.com/microsoft/testfx/releases)
- [Changelog](https://github.com/microsoft/testfx/blob/main/docs/Changelog.md)
- [Commits](microsoft/testfx@v3.7.1...v3.7.3)

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

Signed-off-by: dependabot[bot] <[email protected]>

Directory.Packages.props

@@ -29,8 +29,8 @@
     <PackageVersion Include="$(TileDBNativePackageName)" Version="$(TileDBNativePackageVersion)" />
     <PackageVersion Include="GitHubActionsTestLogger" Version="2.4.1" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-    <PackageVersion Include="MSTest.TestAdapter" Version="3.7.1" />
-    <PackageVersion Include="MSTest.TestFramework" Version="3.7.1" />
+    <PackageVersion Include="MSTest.TestAdapter" Version="3.7.3" />
+    <PackageVersion Include="MSTest.TestFramework" Version="3.7.3" />
     <PackageVersion Include="coverlet.collector" Version="6.0.4" PrivateAssets="all" />
     <GlobalPackageReference Include="SonarAnalyzer.CSharp" Version="10.5.0.109200" />
     <GlobalPackageReference Include="DotNet.ReproducibleBuilds" Version="1.2.25" />