Attribute dependency not captured for complex plans

We observed that when there are multiple nested queries along with window functions involved, attribute dependency not properly tracked. For example, avg_monthly_purhcase dependency should point to customer_id and purchase_amount but the link is completely broken. Attaching test queries and generated plan..

[SampleQueryWithNestedWindowFunction.txt](https://github.com/AbsaOSS/spline-spark-agent/files/11364254/SampleQueryWithNestedWindowFunction.txt)
[customerprocess_plan.txt](https://github.com/AbsaOSS/spline-spark-agent/files/11364255/customerprocess_plan.txt)