test

Shut down the driver's connection pool safely #223

Job	Run time
macos-all (macos-13, ~14.3)	6m 0s
macos-all (macos-13, ~14.3)	6m 0s
linux-all (postgres:13, postgres:14, trust, swift:5.8-focal)	3m 7s
linux-all (postgres:13, postgres:14, trust, swift:5.8-focal)	3m 11s
api-breakage	4m 15s
api-breakage	4m 15s
macos-all (macos-14, latest)	2m 32s
macos-all (macos-14, latest)	2m 32s
linux-all (postgres:15, postgres:16, md5, swift:5.10-jammy)	3m 37s
linux-all (postgres:15, postgres:16, md5, swift:5.10-jammy)	3m 37s
linux-all (postgres:15, postgres:16, scram-sha-256, swiftlang/swift:nightly-6.0-jammy)	5m 17s
linux-all (postgres:15, postgres:16, scram-sha-256, swiftlang/swift:nightly-6.0-jammy)	5m 17s
	49m 40s

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