[stubsabot] Bump ibm-db to 3.2.8 (#14685) #14680

Job	Run time
stubtest: stdlib (ubuntu-latest, 3.11)	43s
stubtest: stdlib (macos-latest, 3.10)	47s
stubtest: stdlib (ubuntu-latest, 3.14)	43s
stubtest: stdlib (macos-latest, 3.13)	40s
stubtest: stdlib (windows-latest, 3.12)	1m 15s
stubtest: stdlib (macos-latest, 3.12)	51s
stubtest: stdlib (windows-latest, 3.11)	1m 28s
stubtest: stdlib (windows-latest, 3.10)	1m 31s
stubtest: stdlib (ubuntu-latest, 3.13)	37s
stubtest: stdlib (windows-latest, 3.13)	1m 22s
stubtest: stdlib (macos-latest, 3.11)	33s
stubtest: stdlib (ubuntu-latest, 3.12)	41s
stubtest: stdlib (windows-latest, 3.14)	1m 6s
stubtest: stdlib (ubuntu-latest, 3.10)	39s
stubtest: stdlib (macos-latest, 3.14)	30s
	13m 26s

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