Test

gtk: don't use gtk_window_set_titlebar if adwaita is enabled but it's older than 1.4.0 #9156

Job	Run time
alejandra	34s
prettier	35s
test	2m 30s
typos	38s
build-nix (namespace-profile-ghostty-md)	2m 13s
build-nix (namespace-profile-ghostty-md-arm64)	5m 3s
build-linux-libghostty	53s
build-bench	52s
build (namespace-profile-ghostty-md, aarch64-linux)	51s
build (namespace-profile-ghostty-md, x86_64-linux)	50s
build (namespace-profile-ghostty-md, x86-windows-gnu)	54s
build-macos	5m 0s
build-macos-matrix	11m 21s
build-windows	6m 25s
build (namespace-profile-ghostty-md, x86_64-windows-gnu)	52s
test-macos	3m 20s
GTK adwaita=true x11=true	58s
GTK adwaita=true x11=false	56s
GTK adwaita=false x11=true	54s
GTK adwaita=false x11=false	56s
	46m 35s

Provide feedback