Updated Upstream (Bukkit/CraftBukkit/Spigot) (#9228)

Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
4727d326 Don't let Sign extend SignSide, mark API as experimental
9b29bdcc PR-845: Add preliminary support for multi sided signs

CraftBukkit Changes:
b346a5f6d PR-1170: Add preliminary support for multi sided signs
86c816189 Update SQLite version
d9324b4bc Fix addition of custom smithing trim / transform recipes

Spigot Changes:
7d7b241e Rebuild patches

1 files changed, 0 insertions, 0 deletions

diff --git a/work/Spigot b/work/Spigot
-Subproject 7da74dae7f21e374cd5ee71645fb2bfccdf05be
+Subproject 7d7b241e353e86ee90ad025dab0262b050a6fe4