Migrate flxible-ipam job to the cloud Jenkins #31842

Job	Run time
Compute outputs for use by other jobs	15s
build-antrea-mc-controller	3m 20s
build-antrea-migrator	17s
build (linux/amd64, ubuntu-latest, amd64)	2m 44s
build (linux/arm64, github-arm64-2c-8gb, arm64)	4m 30s
build-flow-aggregator	2m 17s
build (linux/arm/v7, github-arm64-2c-8gb, arm)	5m 50s
build-scale	1m 56s
build-ubi	4m 21s
build-windows	2m 42s
push-manifest	0s
	28m 12s

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