roles/common: Remove RSA public key

Both client and server support ed25519, so there's no need to even
have the RSA key here.

Signed-off-by: Alan Orth <alan.orth@gmail.com>
roles/common: Add ECDSA public key for noma

Signed-off-by: Alan Orth <alan.orth@gmail.com>
Update tls cipher suite with latest string from Mozilla TLS guide

https://wiki.mozilla.org/Security/Server_Side_TLS states"

    Version 3.3: ulfr: fix SHA256 prio, add POODLE details, update various templates

Signed-off-by: Alan Orth <alan.orth@gmail.com>