chore(deps): update dependency system.text.json to v8.0.3 (#1677)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Refit/Refit.csproj

@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.Text.Json" Version="8.0.2" />
+    <PackageReference Include="System.Text.Json" Version="8.0.3" />
     <PackageReference Include="System.Net.Http.Json" Version="8.0.0" />
   </ItemGroup>