Fix DNS record creation during renewal

lofar_cryptocoryne/client.py

@@ -38,9 +38,7 @@ class DnsClient:
         """Setup DNS TXT records to verify given domain with given tokens"""
         zone = self.desec_client.get_authoritative_domain(verify_domain)
         subname = verify_domain.rsplit(zone["name"], 1)[0].rstrip(".")
-        self.desec_client.change_record(
-            zone["name"], "TXT", subname, [f'"{tokens[0]}"']
-        )
+        self.desec_client.add_record(zone["name"], "TXT", subname, [f'"{tokens[0]}"'])
         self.cleanups.append(
             lambda d=zone["name"], sn=subname: self.desec_client.delete_record(
                 d, "TXT", sn