quic-go can't be built on go1.20 so make sure the example tests only run with go1.19.
Error: ../../../../go/pkg/mod/github.com/lucas-clemente/quic-go@v0.31.1/internal/qtls/go120.go:5:13: cannot use "The version of quic-go you're using can't be built on Go 1.20 yet. For more details, please see https://github.com/lucas-clemente/quic-go/wiki/quic-go-and-Go-versions." (untyped string constant "The version of quic-go you're using can't be built on Go 1.20 yet. F...) as int value in variable declaration
quic-go can't be built on go1.20 so make sure the example tests only run with go1.19.