fix(cubesql): Calculate proper limit and offset for CubeScan in nested limits case #3226

Job	Run time
latest-tag-sha	20s
Build native Linux 20 x86_64-unknown-linux-gnu Python fallback	2m 16s
build	6m 10s
tests (20.x, athena-export-bucket-s3)	17m 2s
tests (20.x, bigquery-export-bucket-gcs)	9m 8s
tests (20.x, clickhouse)	5m 5s
tests (20.x, clickhouse-export-bucket-s3)	5m 42s
tests (20.x, databricks-jdbc)	6m 14s
tests (20.x, databricks-jdbc-export-bucket-s3)	6m 36s
tests (20.x, databricks-jdbc-export-bucket-azure)	6m 28s
tests (20.x, mssql)	5m 18s
tests (20.x, mysql)	5m 13s
tests (20.x, postgres)	4m 56s
tests (20.x, redshift)	6m 10s
tests (20.x, redshift-export-bucket-s3)	5m 52s
tests (20.x, snowflake)	5m 34s
tests (20.x, snowflake-export-bucket-s3)	5m 53s
tests (20.x, snowflake-export-bucket-azure)	5m 23s
tests (20.x, snowflake-export-bucket-azure-via-storage-integration)	5m 48s
tests (20.x, snowflake-export-bucket-gcs)	5m 22s
	2h 0m 30s

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