httpcaddyfile: Sort TLS SNI matcher for deterministic JSON output (#5860)

* httpcaddyfile: Sort TLS SNI matcher, for deterministic adapt output

* Update caddyconfig/httpcaddyfile/httptype.go

---------

Co-authored-by: Matt Holt <mholt@users.noreply.github.com>

caddyconfig/httpcaddyfile/httptype.go

@@ -685,6 +685,7 @@ func (st *ServerType) serversFromPairings(
 					}
 
 					if len(hosts) > 0 {
+						slices.Sort(hosts) // for deterministic JSON output
 						cp.MatchersRaw = caddy.ModuleMap{
 							"sni": caddyconfig.JSON(hosts, warnings), // make sure to match all hosts, not just auto-HTTPS-qualified ones
 						}