Bump TestCentric.Metadata from 3.0.2 to 3.0.3

Bumps [TestCentric.Metadata](https://github.com/TestCentric/Testcentric.Metadata) from 3.0.2 to 3.0.3.
- [Release notes](https://github.com/TestCentric/Testcentric.Metadata/releases)
- [Changelog](https://github.com/TestCentric/TestCentric.Metadata/blob/main/GitReleaseManager.yaml)
- [Commits](TestCentric/TestCentric.Metadata@3.0.2...3.0.3)

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

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

Directory.Packages.props

@@ -11,7 +11,7 @@
     <PackageVersion Include="nunit.engine" Version="3.18.1" />
     <PackageVersion Include="NUnit3TestAdapter" Version="4.6.0" />
     <PackageVersion Include="SourceLink.Create.CommandLine" Version="2.8.3" />
-    <PackageVersion Include="TestCentric.Metadata" Version="3.0.2" />
+    <PackageVersion Include="TestCentric.Metadata" Version="3.0.3" />
     <PackageVersion Include="Microsoft.TestPlatform.ObjectModel" Version="17.11.0" PrivateAssets="All"/>
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.11.0" >
       <PrivateAssets>all</PrivateAssets>

src/NUnitTestAdapter/NUnit.TestAdapter.csproj

@@ -38,7 +38,7 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net462'">
-    <PackageReference Include="Microsoft.TestPlatform.ObjectModel" VersionOverride="11.0.0" />
+    <PackageReference Include="Microsoft.TestPlatform.ObjectModel" VersionOverride="15.0.0" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFrameworkIdentifier)' == '.NETCoreApp'">