update haproxy classifier

[witchcraze]

This PR updates a binary cataloger for haproxy
Fixes #3134

$ go run cmd/syft/main.go -q haproxy:3.0-dev | grep haproxy
haproxy                 3.0-dev13              binary

$ go run cmd/syft/main.go -q haproxy:2.9-dev | grep haproxy
haproxy                 2.9-dev12                     binary

$ go run cmd/syft/main.go -q haproxy:1.9-dev11 | grep haproxy
haproxy                 1.9-dev11              binary

[kzantow]

LGTM, thanks @witchcraze !