MINOR: global: add fd-hard-limit #1110

Job	Run time
generate-models	1m 41s
generate-specification	1m 0s
HAProxy check commit message	0s
lint-spec	0s
license-check	0s
golangci-lint	0s
go mod tidy	0s
Build	0s
Test equal	0s
e2e on HAProxy	0s
Tests	0s
	2m 41s

Provide feedback