DialContext doesn't give back TLS information

Dear devs,

thank you for providing this library, however, I have an issue:

I have an TLS encrypted connection, but the response of DialContext() doesn't provide this informations as resp.TLS is always nil. :(

Here I dial: https://salsa.debian.org/mdosch/xmpp-dns/-/blob/gorilla/main.go#L956 There it is always nil: https://salsa.debian.org/mdosch/xmpp-dns/-/blob/gorilla/main.go#L1007

Best regards, Martin