Bump System.Text.Json from 8.0.2 to 8.0.4 in /Src/Core/Mackiloha.App

Bumps System.Text.Json from 8.0.2 to 8.0.4.

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

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

Src/Core/Mackiloha.App/Mackiloha.App.csproj

@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.Text.Json" Version="8.0.2" />
+    <PackageReference Include="System.Text.Json" Version="8.0.4" />
     <PackageReference Include="BCnEncoder.Net.ImageSharp" Version="1.1.1" />
   </ItemGroup>