Build with rust-gtk4 0.9 stack

@werdahias FYI, this isn't building.

   Compiling pango v0.20.1
   Compiling gdk4 v0.9.0
error[E0425]: cannot find function `gdk_cursor_new_from_callback` in crate `ffi`
    --> /usr/share/cargo/registry/gdk4-0.9.0/src/cursor.rs:58:33
     |
58   |             from_glib_full(ffi::gdk_cursor_new_from_callback(
     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: a function with a similar name exists: `gdk_cursor_get_fallback`
     |
    ::: /usr/share/cargo/registry/gdk4-sys-0.9.0/src/lib.rs:4159:5
     |
4159 |     pub fn gdk_cursor_get_fallback(cursor: *mut GdkCursor) -> *mut GdkCursor;
     |     ------------------------------------------------------------------------ similarly named function `gdk_cursor_get_fallback` defined here

For more information about this error, try `rustc --explain E0425`.