build(deps): bump aiohttp from 3.9.1 to 3.9.2 in /dask-gateway-server #810

Job	Run time
Test k8s backend & chart (v1.25, separate-namespace)	1m 33s
Test hadoop backend	2m 14s
main-tests (3.9, 1.20)	2m 26s
Test k8s backend & chart (v1.26, default, 2022.4.0)	2m 2s
Test pbs backend	1m 45s
main-tests (3.10, 1.21)	2m 27s
Test slurm backend	1m 36s
main-tests (3.11, 1.21)	2m 39s
Test k8s backend & chart (v1.27, default)	1m 37s
main-tests (3.12, 1.21)	2m 31s
Test k8s backend & chart (v1.28, default)	1m 36s
Test k8s backend & chart (v1.29, default)	1m 31s
	23m 57s

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