fix(cubesql): Calculate proper limit and offset for CubeScan in nested limits case #3295

Job	Run time
latest-tag-sha	24s
Build native Linux 20 x86_64-unknown-linux-gnu Python fallback	2m 47s
build	6m 25s
tests (20.x, athena-export-bucket-s3)	17m 11s
tests (20.x, bigquery-export-bucket-gcs)	11m 46s
tests (20.x, clickhouse)	5m 12s
tests (20.x, clickhouse-export-bucket-s3)	5m 14s
tests (20.x, databricks-jdbc)	6m 39s
tests (20.x, databricks-jdbc-export-bucket-s3)	6m 32s
tests (20.x, databricks-jdbc-export-bucket-azure)	7m 7s
tests (20.x, mssql)	5m 19s
tests (20.x, mysql)	5m 28s
tests (20.x, postgres)	5m 16s
tests (20.x, redshift)	6m 35s
tests (20.x, redshift-export-bucket-s3)	6m 51s
tests (20.x, snowflake)	5m 47s
tests (20.x, snowflake-export-bucket-s3)	5m 47s
tests (20.x, snowflake-export-bucket-azure)	5m 53s
tests (20.x, snowflake-export-bucket-azure-via-storage-integration)	5m 51s
tests (20.x, snowflake-export-bucket-gcs)	5m 55s
	2h 7m 59s

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