go.mod: update all dependencies and set Go mod version to 1.20

The update on share module affect the following changes,

* lib/dns: removing dns.ZoneRecords, replacing it with
  map[string][]*dns.ResourceRecord

* lib/dns: file Name in Zone renamed to Origin

* lib/dns: replace call to Caches.InternalPopulate with
  InternalPopulateZone that accept zone as parameter

1 files changed, 1 insertions, 1 deletions

diff --git a/httpd.go b/httpd.go
index 4a13524..b1487f4 100644
--- a/httpd.go
+++ b/httpd.go
@@ -1498,7 +1498,7 @@ func (srv *Server) apiZonedRRDelete(epr *libhttp.EndpointRequest) (resbody []byt
 	}
 
 	rr.Name = strings.TrimRight(rr.Name, ".")
-	rr.Name = strings.TrimRight(rr.Name, zone.Name)
+	rr.Name = strings.TrimRight(rr.Name, zone.Origin)
 
 	if rr.Type == dns.RecordTypePTR {
 		if len(rr.Name) == 0 {