Merge pull request #4762 from pwojcikdev/thread-pool-work #2363

Job	Run time
macOS [UBSAN] [lmdb \| clang]	38m 28s
Linux [UBSAN] [lmdb \| clang]	43m 30s
macOS [ASAN] [lmdb \| clang]	31m 21s
macOS [TSAN] [lmdb \| clang]	35m 33s
Linux [ASAN] [lmdb \| clang]	40m 17s
macOS [UBSAN] [rocksdb \| clang]	40m 23s
Linux [ASAN_INT] [lmdb \| clang] (Errors Ignored)	41m 26s
macOS [ASAN] [rocksdb \| clang]	38m 11s
Linux [TSAN] [lmdb \| clang]	44m 31s
macOS [TSAN] [rocksdb \| clang]	54m 43s
Linux [LEAK] [lmdb \| clang] (Errors Ignored)	41m 21s
Linux [UBSAN] [rocksdb \| clang]	55m 22s
Linux [ASAN] [rocksdb \| clang]	55m 49s
Linux [ASAN_INT] [rocksdb \| clang] (Errors Ignored)	57m 12s
Linux [LEAK] [rocksdb \| clang] (Errors Ignored)	57m 0s
	11h 15m 7s

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