Etapa G: limpia cola go-12 — parquea batch gráfico C a hold-nongo + difiere syncthing

- mesa/wayland/wayland-protocols/libdrm/seatd/samurai/meson + patches: batch C de gráficos previo
  que jamás se mandó al worker, arrastrado en incoming/. Parqueado en tandas/hold-nongo/.
- syncthing: build especial (genera la GUI embebida 'auto.Assets' vía go generate/build.go) ⇒
  diferida a staged-fallidos con el motivo. Quedan 18 go-12 limpias en la cola.

tandas/hold-nongo/skip-broken-tests.patch

@@ -0,0 +1,36 @@
+--- a/unittests/linuxliketests.py
++++ b/unittests/linuxliketests.py
+@@ -993,6 +993,8 @@
+             self.assertEqual(got_rpath, yonder_libdir, rpath_format)
+ 
+     @skip_if_not_base_option('b_sanitize')
++    # https://github.com/mesonbuild/meson/issues/8283
++    @unittest.skip('broken with improperly detected sanitizers')
+     def test_pch_with_address_sanitizer(self):
+         if is_cygwin():
+             raise SkipTest('asan not available on Cygwin')
+@@ -1192,6 +1192,7 @@
+             self.build()
+ 
+     @skipIfNoPkgconfig
++    @unittest.skip('fails because of GNU libintl mess on alpine :)')
+     def test_pkgconfig_formatting(self):
+         testdir = os.path.join(self.unit_test_dir, '38 pkgconfig format')
+         self.init(testdir)
+--- a/unittests/allplatformstests.py
++++ b/unittests/allplatformstests.py
+@@ -377,5 +377,6 @@
+         self.assertNotEqual(before, after)
+
++    @unittest.skip('samurai has a reverse order')
+     def test_static_compile_order(self):
+         '''
+         Test that the order of files in a compiler command-line while compiling
+@@ -3198,6 +3198,7 @@
+             else:
+                 self.assertEqual(o, e)
+ 
++    @unittest.skip('broken with current version of samurai')
+     def test_meson_compile(self):
+         """Test the meson compile command."""
+