Hotfix: Update API source in node ping tester script (#6082)

Author: serinko

scripts/test-nodes-pings.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-API_URL="${API_URL:-https://validator.nymtech.net/api/v1/gateways/described}"
+API_URL="${API_URL:-https://validator.nymtech.net/api/v1/nym-nodes/described}"
 CONCURRENCY="${CONCURRENCY:-64}"     # how many pings in flight
 PING_TIMEOUT="${PING_TIMEOUT:-7}"    # seconds to wait for a single echo reply
 PING_RETRIES="${PING_RETRIES:-1}"    # additional attempts after the first failure
@@ -28,19 +28,13 @@ curl -fsSL --retry 3 --retry-delay 1 --compressed "$API_URL" -o "$tmp_json"
 # extract IPs
 ip_list="$(mktemp)"
 jq -r '
-  .[]? as $g
-  | (
-      ($g.self_described.host_information.ip_address? // [])
-      + (
-          [ $g.bond.gateway.host ]
-          | map(select(type=="string"))
-        )
-    )[]
+  .data[]?
+  | (.description.host_information.ip_address? // [])[]
 ' "$tmp_json" \
 | awk '
   # very permissive IPv4/IPv6 syntax filters (we let ping validate the rest)
   function is_ipv4(s){ return (s ~ /^[0-9]{1,3}(\.[0-9]{1,3}){3}$/) }
-  function is_ipv6(s){ return (index(s,":")>0) }
+  function is_ipv6(s){ return (index(s,":") > 0) }
   { if(is_ipv4($0) || is_ipv6($0)) print $0 }
 ' \
 | sort -u > "$ip_list"
@@ -99,3 +93,4 @@ awk '{printf "%s,%s\n",$1,$2}' "$num_list" \
 echo "Done. Results:"
 echo "  $(($(wc -l < "$OK_CSV") - 1)) reachable -> $OK_CSV"
 echo "  $(($(wc -l < "$BAD_CSV") - 1)) not reachable -> $BAD_CSV"
+