Updated Upstream (Paper)

Upstream has released updates that appear to apply and compile correctly

Paper Changes:
PaperMC/Paper@3af5e771 Add Player#give (#11995)
PaperMC/Paper@7e21cb81 fix PlayerChangedMainHandEvent javadoc (#12020)
PaperMC/Paper@5a34bf04 Correctly retrun true for empty input shapes in EntityGetter#isUnobstructed
PaperMC/Paper@a392d475 Make Watchdog thread extend TickThread

purpur-api/paper-patches/files/src/main/java/org/bukkit/entity/Player.java.patch

@@ -1,9 +1,9 @@
 --- a/src/main/java/org/bukkit/entity/Player.java
 +++ b/src/main/java/org/bukkit/entity/Player.java
-@@ -3892,4 +_,123 @@
+@@ -3928,4 +_,123 @@
+      * @return the result of this method, holding leftovers and spawned items.
       */
-     void sendEntityEffect(org.bukkit.@NotNull EntityEffect effect, @NotNull Entity target);
-     // Paper end - entity effect API
+     @NotNull PlayerGiveResult give(@NotNull Collection<@NotNull ItemStack> items, boolean dropIfFull);
 +
 +    // Purpur start
 +    /**