Bump Microsoft.Extensions.Hosting in /unit-1/completed

Bumps [Microsoft.Extensions.Hosting](https://github.com/dotnet/runtime) from 9.0.2 to 9.0.3.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v9.0.2...v9.0.3)

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.Hosting
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

unit-1/completed/AkkaWordCounter2.App/AkkaWordCounter2.App.csproj

@@ -10,7 +10,7 @@
   <ItemGroup>
     <PackageReference Include="Akka.Hosting" Version="1.5.38" />
     <PackageReference Include="HtmlAgilityPack" Version="1.12.0" />
-    <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.2"/>
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.3"/>
     <PackageReference Include="Microsoft.Extensions.Http" Version="9.0.2" />
   </ItemGroup>