Upgrade agnhost image to 2.52 for both Linux and Windows tests #31568

Job	Run time
Compute outputs for use by other jobs	15s
build-antrea-mc-controller	3m 19s
build (linux/amd64, ubuntu-latest, amd64)	2m 36s
build-antrea-migrator	20s
build (linux/arm64, github-arm64-2c-8gb, arm64)	4m 37s
build-flow-aggregator	2m 9s
build-scale	1m 59s
build (linux/arm/v7, github-arm64-2c-8gb, arm)	5m 38s
build-ubi	2m 57s
build-windows	2m 40s
push-manifest	0s
	26m 30s

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