test: Disable O_DIRECT in cache fuzzer #16920

Job	Run time
Build	50m 22s
Build with Clang	0s
Presto Fuzzer	31m 5s
Presto Bias Fuzzer	0s
Cache Fuzzer	15m 32s
Aggregation Fuzzer with Presto as source of truth	17m 9s
Exchange Fuzzer	16m 0s
Join Fuzzer	17m 10s
RowNumber Fuzzer	15m 35s
Spark Aggregate Fuzzer	15m 58s
Spark Bias Fuzzer	0s
Spark Fuzzer	1h 32m 59s
Biased Aggregation Fuzzer with Presto as source of truth	0s
Biased Expression Fuzzer with Only Added/Updated Functions and Presto as source of truth	0s
Window Fuzzer with Presto as source of truth	17m 8s
Writer Fuzzer with Presto as source of truth	16m 58s
Signature Changes	3s
	5h 5m 59s

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