Bump MSTest from 3.7.2 to 3.7.3

Bumps [MSTest](https://github.com/microsoft/testfx) from 3.7.2 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@v3.7.2...v3.7.3)

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

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

Author: dependabot[bot]

CICD.Tools.GitHubToCatalogYamlTests/CICD.Tools.GitHubToCatalogYamlTests.csproj

@@ -14,7 +14,7 @@
     <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="9.0.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="9.0.0" />
     <PackageReference Include="Moq" Version="4.20.72" />
-    <PackageReference Include="MSTest" Version="3.7.2" />
+    <PackageReference Include="MSTest" Version="3.7.3" />
     <PackageReference Include="coverlet.collector" Version="6.0.4" />
   </ItemGroup>