Bump Microsoft.TestPlatform.ObjectModel from 17.11.1 to 17.12.0

Bumps [Microsoft.TestPlatform.ObjectModel](https://github.com/microsoft/vstest) from 17.11.1 to 17.12.0.
- [Release notes](https://github.com/microsoft/vstest/releases)
- [Changelog](https://github.com/microsoft/vstest/blob/main/docs/releases.md)
- [Commits](microsoft/vstest@v17.11.1...v17.12.0)

---
updated-dependencies:
- dependency-name: Microsoft.TestPlatform.ObjectModel
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

tests/Tests.Core/Tests.Core.csproj

@@ -13,7 +13,7 @@
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="$(SolutionRoot)\tests\Tests.Domain\Tests.Domain.csproj" />
-    <PackageReference Include="Microsoft.TestPlatform.ObjectModel" Version="17.11.1" />
+    <PackageReference Include="Microsoft.TestPlatform.ObjectModel" Version="17.12.0" />
 
     <PackageReference Include="xunit" Version="2.9.2" />
     <ProjectReference Include="$(SolutionRoot)\abstractions\src\OpenSearch.OpenSearch.Xunit\OpenSearch.OpenSearch.Xunit.csproj" />