strata: skip a 0.21.0 GTK test that cannot run headless

pkgbuilds/strata/PKGBUILD

@@ -117,6 +117,11 @@ check() {
   # bug in the example for users with UTF-8 locales; skip until upstream
   # logs names with errors="surrogateescape".
   skip+=(--skip adapters::local_jobs::tests::examples::checksum_example_handles_native_names_and_refuses_existing_files_and_links)
+  # reopening_resumes_where_the_preview_closed (new in 0.21.0) calls
+  # gtk::init().expect() itself, so on the headless builder it panics with
+  # "Failed to initialize GTK" where every other GTK test skips. Skip until
+  # upstream guards it like the rest.
+  skip+=(--skip ui::media::tests::reopening_resumes_where_the_preview_closed)
   # ownership_probe_errors_disable_in_place_updates points the pacman path
   # at a directory and expects Command::output() to fail. aarch64 builds
   # run under QEMU user-mode emulation, where glibc's posix_spawn cannot