Add port validator to ensure configurable ports are valid #32820

Job	Run time
Compute outputs for use by other jobs	28s
build-ubi	7m 28s
build-windows	2m 46s
build-antrea-mc-controller	3m 24s
build (linux/amd64, ubuntu-latest, amd64)	2m 40s
build-antrea-migrator	16s
build (linux/arm64, github-arm64-2c-8gb, arm64)	4m 41s
build-flow-aggregator	2m 20s
build-scale	1m 57s
build (linux/arm/v7, github-arm64-2c-8gb, arm)	6m 20s
push-manifest	0s
	32m 20s

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