BUILD/MINOR: specification: upgrade swag packages #979

Job	Run time
generate-models	1m 37s
generate-specification	1m 1s
HAProxy check commit message	0s
golangci-lint	1m 4s
lint-spec	13s
license-check	33s
Build	26s
go mod tidy	15s
Test equal	1m 21s
Tests	56s
e2e on HAProxy (2.2)	54s
e2e on HAProxy (2.1)	52s
e2e on HAProxy (2.8)	54s
e2e on HAProxy (2.5)	58s
e2e on HAProxy (2.3)	51s
e2e on HAProxy (2.7)	53s
e2e on HAProxy (2.6)	58s
e2e on HAProxy (2.4)	53s
	14m 39s

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