test(conformance): update DNS tests to Proxmox Gateway VIP 192.168.1.53 (was 10.73.0.24x)

Co-Authored-By: Claude Opus 4.8 <[email protected]>

conformance/tests/l2-behavioral/dns-exposure/chainsaw-test.yaml

@@ -7,7 +7,7 @@
 # WHEN  ExternalDNS reconciles (source=service, provider=cloudflare, policy=sync),
 # THEN  a PUBLIC DNS record for that hostname is auto-created, pointing at the
 #       Service's Cilium-assigned LB IP (R-DNS-02). The record resolves to the
-#       cluster LB IP (10.73.0.240-.250), i.e. clients reach the cluster endpoint.
+#       cluster LB IP (Cilium L2 `shared` pool 192.168.1.53-.60), i.e. clients reach the cluster endpoint.
 #
 # CLEANUP: chainsaw deletes the per-test namespace (Service included) at teardown;
 # ExternalDNS policy=sync then REMOVES the record from Cloudflare on its next pass.
@@ -83,9 +83,9 @@ spec:
                             set -u
                             host="conformance-dns.home.keithjackson.dev"
                             # Poll PUBLIC DNS (1.1.1.1) until the auto-created A record appears and
-                            # points into the cluster LB range 10.73.0.24x. Proves ExternalDNS created it.
+                            # points into the cluster LB range (Cilium L2 `shared` pool 192.168.1.53-.60). Proves ExternalDNS created it.
                             for i in $(seq 1 28); do
-                              ip="$(nslookup "$host" 1.1.1.1 2>/dev/null | grep -oE '10\.73\.0\.[0-9]+' | head -1)"
+                              ip="$(nslookup "$host" 1.1.1.1 2>/dev/null | grep -oE '192\.168\.1\.(5[3-9]|60)' | head -1)"
                               if [ -n "$ip" ]; then echo "RECORD_FOUND $host -> $ip"; exit 0; fi
                               echo "poll $i: record not yet published"; sleep 10
                             done