refactor: Prepare Connector and Runner for Verax MetadataConnector #15532

Job	Run time
Build	48m 46s
Build with Clang	0s
Spark Aggregate Fuzzer	15m 46s
Presto Fuzzer	31m 4s
Presto Bias Fuzzer	0s
Cache Fuzzer	16m 14s
Exchange Fuzzer	16m 23s
Aggregation Fuzzer with Presto as source of truth	21m 50s
Join Fuzzer	17m 30s
RowNumber Fuzzer	15m 35s
Spark Bias Fuzzer	0s
Spark Fuzzer	16m 1s
Signature Changes	2s
Biased Aggregation Fuzzer with Presto as source of truth	0s
Window Fuzzer with Presto as source of truth	17m 38s
Biased Expression Fuzzer with Only Added/Updated Functions and Presto as source of truth	0s
Writer Fuzzer with Presto as source of truth	17m 23s
	3h 54m 12s

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