Update core (sing-box v1.7.8)

0xConsumer · 0xConsumer · commit 3a60e4686741 · 2024-01-06T11:51:54.000+03:30
diff --git a/libcore b/libcore
@@ -1 +1 @@
-Subproject commit 29c6413bcee33971e3d888dc853face2246e8a7f
+Subproject commit a6ef8d65b683f29942567b1530e8549a1021dfe0
