BUILD/MINOR: go.mod: update Go packages #454

Job	Run time
generate-models	56s
generate-specification	44s
HAProxy check commit message	0s
golangci-lint	1m 16s
go mod tidy	8s
lint-spec	8s
Build	19s
Tests	27s
e2e on HAProxy (2.1)	51s
e2e on HAProxy (2.2)	43s
e2e on HAProxy (2.3)	47s
e2e on HAProxy (2.4)	50s
e2e on HAProxy (2.5)	45s
e2e on HAProxy (2.6)	46s
e2e on HAProxy (2.7)	46s
e2e on HAProxy (2.8)	44s
	10m 10s

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