Bump Microsoft.NET.ILLink.Tasks from 8.0.18 to 8.0.19

---
updated-dependencies:
- dependency-name: Microsoft.NET.ILLink.Tasks
  dependency-version: 8.0.19
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

samples/Foundatio.SampleApp/Client/Foundatio.SampleApp.Client.csproj

@@ -12,6 +12,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.NET.ILLink.Tasks" Version="8.0.19" />
     <ProjectReference Include="..\Shared\Foundatio.SampleApp.Shared.csproj" />
   </ItemGroup>