Provide your own DoH endpoint has a separated --url option
Overwrites --dns option if set.
test use cases
$ ./doh-cli analytics.google.com
analytics.google.com. 79165 IN CNAME www3.l.google.com.
172.217.22.46
$ ./doh-cli --dns google analytics.google.com A
analytics.google.com. 79196 IN CNAME www3.l.google.com.
172.217.22.46
$ ./doh-cli --dns google --url https://doh.libredns.gr/ads analytics.google.com A
0.0.0.0
./doh-cli --url https://doh.libredns.gr/dns-query www.example.com A
93.184.216.34