ipv6_only: pin patched lwip so .local names resolve over IPv6 (esp-lwip#94)

common/ipv6_only.yaml

@@ -26,6 +26,11 @@ esp32:
         source: https://github.com/randybb/esp-protocols.git
         ref: mdns-v1.12.0-zero-ipv4-test
         path: components/mdns
+      # IDF v5.5.5 lwip + .local resolution over IPv6 (espressif/esp-lwip#94), drop once in IDF
+      - name: lwip
+        source: https://github.com/randybb/esp-lwip.git
+        ref: idf-v5.5.5-lwip-component
+        path: lwip
 
 network:
   enable_ipv6: true