BUILD/MINOR: go.mod: update Go packages #498

Job	Run time
HAProxy check commit message	0s
generate-models	1m 28s
generate-specification	42s
golangci-lint	45s
lint-spec	8s
go mod tidy	9s
Build	17s
Tests	54s
e2e on HAProxy (2.1)	45s
e2e on HAProxy (2.2)	51s
e2e on HAProxy (2.3)	49s
e2e on HAProxy (2.4)	46s
e2e on HAProxy (2.5)	3m 21s
e2e on HAProxy (2.6)	45s
e2e on HAProxy (2.7)	1m 16s
e2e on HAProxy (2.8)	46s
	13m 42s

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