[Auto] Updated Upstream (Bukkit)

Upstream has released updates that appears 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:
6875ad8b Update documentation and status of command completion related events

Spigot-API-Patches/AsyncTabCompleteEvent.patch

@@ -186,7 +186,7 @@ index 00000000..3071320e
 +    }
 +}
 diff --git a/src/main/java/org/bukkit/event/server/TabCompleteEvent.java b/src/main/java/org/bukkit/event/server/TabCompleteEvent.java
-index 6ac437d5..df6eb53d 100644
+index a6229839..f0bc3563 100644
 --- a/src/main/java/org/bukkit/event/server/TabCompleteEvent.java
 +++ b/src/main/java/org/bukkit/event/server/TabCompleteEvent.java
 @@ -0,0 +0,0 @@

work/Bukkit

@@ -1 +1 @@
-Subproject commit 497877c30c12d5f06e5b676e8b45f33776ab0c7c
+Subproject commit 6875ad8bb890376913d9141b955c996444fbe94c