Bump System.Text.Json in /src/NetTopologySuite.IO.GeoJSON4STJ

Bumps System.Text.Json from 6.0.3 to 8.0.4.

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

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

src/NetTopologySuite.IO.GeoJSON4STJ/NetTopologySuite.IO.GeoJSON4STJ.csproj

@@ -34,7 +34,7 @@
   <ItemGroup>
     <PackageReference Include="NetTopologySuite" Version="[2.0.0, 3.0.0-A)" />
     <PackageReference Include="NetTopologySuite.Features" Version="[2.1.0, 3.0.0-A)" />
-    <PackageReference Include="System.Text.Json" Version="6.0.3" />
+    <PackageReference Include="System.Text.Json" Version="8.0.4" />
   </ItemGroup>
 
   <ItemGroup>