tm2/pkg/bft/privval: NewSignerListener leaks listener in case it can't recognize the protocol yet it was validly bound to

[odeke-em]

gno/tm2/pkg/bft/privval/utils.go

Line 42 in 2838ad1

default:

is the route where this code leaks a listener that was validly bound to in

gno/tm2/pkg/bft/privval/utils.go

Lines 32 to 35 in 2838ad1

	ln, err := net.Listen(protocol, address)
	if err != nil {
	return nil, err
	}

[kristovatlas]

Thanks for the report, @odeke-em. We're looking into it.