fix(cubesql): Calculate proper limit and offset for CubeScan in nested limits case #3006

Job	Run time
Build native Linux 20 x86_64-unknown-linux-gnu Python fallback	2m 22s
latest-tag-sha	19s
build	6m 13s
tests (20.x, athena-export-bucket-s3)	15m 53s
tests (20.x, bigquery-export-bucket-gcs)	8m 4s
tests (20.x, clickhouse)	4m 51s
tests (20.x, clickhouse-export-bucket-s3)	5m 9s
tests (20.x, databricks-jdbc)	5m 18s
tests (20.x, databricks-jdbc-export-bucket-s3)	6m 54s
tests (20.x, databricks-jdbc-export-bucket-azure)	6m 19s
tests (20.x, mssql)	4m 55s
tests (20.x, mysql)	4m 33s
tests (20.x, postgres)	4m 28s
tests (20.x, redshift)	5m 38s
tests (20.x, redshift-export-bucket-s3)	6m 7s
tests (20.x, snowflake)	5m 8s
tests (20.x, snowflake-export-bucket-s3)	5m 1s
tests (20.x, snowflake-export-bucket-azure)	5m 18s
tests (20.x, snowflake-export-bucket-azure-via-storage-integration)	5m 26s
tests (20.x, snowflake-export-bucket-gcs)	5m 3s
	1h 52m 59s

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