revert back to old version (#279)

Co-authored-by: Chalapala RaghavendraReddy <raghavendrareddy.chalapala@siemens.com>

Author: crvreddy

src/LCT.PackageIdentifier/LCT.PackageIdentifier.csproj

@@ -27,7 +27,7 @@
 		<PackageReference Include="NuGet.Resolver" Version="6.6.1" />
 		<PackageReference Include="packageurl-dotnet" Version="1.3.0" />
 		<PackageReference Include="System.Threading.Tasks.Dataflow" Version="4.10.0" />
-    <PackageReference Include="System.Text.Json" Version="9.0.2" />
+    <PackageReference Include="System.Text.Json" Version="6.0.2" />
 	</ItemGroup>
 
 	<ItemGroup>