Bump coverlet.msbuild from 2.9.0 to 3.0.3 in /tests/PVOutput.Net.Tests

Bumps [coverlet.msbuild](https://github.com/coverlet-coverage/coverlet) from 2.9.0 to 3.0.3.
- [Release notes](https://github.com/coverlet-coverage/coverlet/releases)
- [Commits](https://github.com/coverlet-coverage/coverlet/commits)

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

tests/PVOutput.Net.Tests/PVOutput.Net.Tests.csproj

@@ -6,7 +6,7 @@
     <OutputPath>..\..\artifacts\</OutputPath>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="coverlet.msbuild" Version="2.9.0">
+    <PackageReference Include="coverlet.msbuild" Version="3.0.3">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>