Bump System.Text.Json from 8.0.3 to 8.0.4 in /src/Neo.Json (#3416)

Bumps System.Text.Json from 8.0.3 to 8.0.4.

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

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src/Neo.Json/Neo.Json.csproj

@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.Text.Json" Version="8.0.3" />
+    <PackageReference Include="System.Text.Json" Version="8.0.4" />
   </ItemGroup>
 
 </Project>