Roll pub packages (flutter#166810)

This PR was generated by `flutter update-packages --force-upgrade`.

Author: flutter-pub-roller-bot

dev/integration_tests/link_hook/pubspec.yaml

@@ -26,7 +26,7 @@ dependencies:
 
 dev_dependencies:
   ffi: 2.1.4
-  ffigen: 18.0.0
+  ffigen: 18.1.0
   flutter_lints: 5.0.0
   test: 1.25.15
 
@@ -68,4 +68,4 @@ dev_dependencies:
   webkit_inspection_protocol: 1.2.1 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   yaml_edit: 2.2.2 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
-# PUBSPEC CHECKSUM: a861
+# PUBSPEC CHECKSUM: bf62