update target test for 8.17

Author: jcupitt

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## master
 
+## Version 2.2.4 (2025-06-05)
+
+* fix write to target test with libvips 8.17 [jcupitt]
+
 ## Version 2.2.3 (2025-02-06)
 
 * fix `Image#add_alpha()` with libvips 8.16 [kleisauke]

spec/connection_spec.rb

@@ -66,7 +66,9 @@
 
   it "can't create a target to a bad filename" do
     expect {
-      Vips::Target.new_to_file "/banana/monkey"
+      target = Vips::Target.new_to_file "/banana/monkey"
+      image = Vips::Image.black 1, 1
+      image.write_to_target(target, "")
     }.to raise_exception(Vips::Error)
   end