Bump System.Text.Json from 8.0.4 to 8.0.5 in /FO-DICOM.Core (#1861)

Bumps [System.Text.Json](https://github.com/dotnet/runtime) from 8.0.4 to 8.0.5.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](dotnet/runtime@v8.0.4...v8.0.5)

---
updated-dependencies:
- dependency-name: System.Text.Json
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

FO-DICOM.Core/FO-DICOM.Core.csproj

@@ -85,7 +85,7 @@ If you find some breaking changes when updating, read here for more information
     <PackageReference Include="System.Buffers" Version="4.5.1" />
     <PackageReference Include="System.Text.Encoding.CodePages" Version="6.0.0" />
     <PackageReference Include="System.Text.Encodings.Web" Version="8.0.0" />
-    <PackageReference Include="System.Text.Json" Version="8.0.4" />
+    <PackageReference Include="System.Text.Json" Version="8.0.5" />
     <PackageReference Include="System.Threading.Channels" Version="6.0.0" />
   </ItemGroup>