BUILD/MINOR: go.mod: update Go packages #520

Job	Run time
generate-specification	57s
HAProxy check commit message	0s
generate-models	1m 6s
golangci-lint	1m 26s
Build	27s
lint-spec	8s
license-check	49s
go mod tidy	6s
Tests	2m 51s
e2e on HAProxy (2.1)	44s
e2e on HAProxy (2.2)	43s
e2e on HAProxy (2.3)	46s
e2e on HAProxy (2.4)	52s
e2e on HAProxy (2.5)	48s
e2e on HAProxy (2.6)	51s
e2e on HAProxy (2.7)	42s
e2e on HAProxy (2.8)	40s
	13m 56s

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