BUG/MINOR: redispatch: allow interval of 0 #952

Job	Run time
generate-models	1m 37s
generate-specification	49s
HAProxy check commit message	0s
golangci-lint	0s
lint-spec	0s
license-check	0s
Tests	0s
go mod tidy	0s
Build	0s
e2e on HAProxy	-1s
	2m 25s

Provide feedback