BUILD/MINOR: go.mod: update golang.org/x packages #595

Job	Run time
HAProxy check commit message	0s
generate-models	1m 25s
generate-specification	45s
golangci-lint	51s
lint-spec	10s
Build	26s
go mod tidy	7s
Tests	36s
e2e on HAProxy (2.1)	42s
e2e on HAProxy (2.2)	41s
e2e on HAProxy (2.3)	37s
e2e on HAProxy (2.4)	39s
e2e on HAProxy (2.5)	37s
e2e on HAProxy (2.6)	37s
e2e on HAProxy (2.7)	40s
e2e on HAProxy (2.8)	41s
	9m 34s

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