Bump the microsoft group in /src/backend with 2 updates

Bumps the microsoft group in /src/backend with 2 updates: [Microsoft.AspNetCore.OpenApi](https://github.com/dotnet/aspnetcore) and Microsoft.VisualStudio.Azure.Containers.Tools.Targets.


Updates `Microsoft.AspNetCore.OpenApi` from 8.0.2 to 8.0.4
- [Release notes](https://github.com/dotnet/aspnetcore/releases)
- [Changelog](https://github.com/dotnet/aspnetcore/blob/main/docs/ReleasePlanning.md)
- [Commits](dotnet/aspnetcore@v8.0.2...v8.0.4)

Updates `Microsoft.VisualStudio.Azure.Containers.Tools.Targets` from 1.19.6 to 1.20.1

---
updated-dependencies:
- dependency-name: Microsoft.AspNetCore.OpenApi
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: microsoft
- dependency-name: Microsoft.VisualStudio.Azure.Containers.Tools.Targets
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: microsoft
...

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

src/backend/WebApi/WebApi.csproj

@@ -8,8 +8,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.2" />
-    <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.19.6" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.4" />
+    <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.20.1" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
   </ItemGroup>