starting with OpenSSH 10, all Diffie-Hellman key exchange algorithms are disabled by default. To generate recordings, we must explicitly enable them. Change-Id: Icfbf46b30478f36d7040991e0f6324b9b4766aaf Reviewed-on: https://go-review.googlesource.com/c/crypto/+/665115 Reviewed-by: Filippo Valsorda <filippo@golang.org> Auto-Submit: Nicola Murino <nicola.murino@gmail.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Michael Pratt <mpratt@google.com>