misc: Add isBlockedTiming to PlanNodeStats #12420

Job	Run time
Build	24m 38s
Spark Aggregate Fuzzer	16m 4s
Presto Fuzzer	31m 10s
Spark Fuzzer	16m 1s
Presto Bias Fuzzer	0s
Aggregation Fuzzer with Presto as source of truth	17m 36s
Join Fuzzer	17m 40s
Exchange Fuzzer	16m 40s
Window Fuzzer with Presto as source of truth	17m 35s
Writer Fuzzer with Presto as source of truth	17m 25s
RowNumber Fuzzer	15m 39s
Spark Bias Fuzzer	0s
Signature Changes	5s
Biased Aggregation Fuzzer with Presto as source of truth	0s
	3h 10m 33s

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