fix(fuzzer): Fix toSql methods for NestedLoopJoinNode in Reference Query Runners #15245

Job	Run time
Build with Clang	0s
Build	48m 15s
Spark Aggregate Fuzzer	15m 42s
Spark Fuzzer	15m 45s
Presto Bias Fuzzer	0s
Presto Fuzzer	30m 47s
Exchange Fuzzer	16m 6s
Biased Aggregation Fuzzer with Presto as source of truth	0s
Aggregation Fuzzer with Presto as source of truth	17m 57s
Join Fuzzer	17m 34s
Biased Expression Fuzzer with Only Added/Updated Functions and Presto as source of truth	0s
Window Fuzzer with Presto as source of truth	17m 48s
Writer Fuzzer with Presto as source of truth	17m 34s
RowNumber Fuzzer	15m 36s
Spark Bias Fuzzer	0s
Signature Changes	4s
	3h 33m 8s

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