Update deprecated TLS directives

[ollie-galbraith]

Is your feature request related to a problem? Please describe.
Hoping you can update the default TLS directives from the deprecated

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
...
}

to the current directive of

server {
    listen 443 ssl;
    listen [::]:443 ssl;
    http2 on;
...
}

reference - https://www.nginx.com/blog/nginx-plus-r30-released/

[0xJacky]

Thanks