Prevent internal NPE on ItemStack#damage (#10836)

ItemStack#damage internally uses ItemStack#hurtAndBreak, which
previously would call a Consumer in case the item broke.
Since 1.20.5 the break game event logic however resides in said method
and was using the equipment slot passed, which is null in the case of
the API ItemStack#damage method.

This commit prevents the NPE by first null checking the slot.
Addittionally, hurtAndBreak also now checks if the player has infinite
materials, e.g. is in creative mode, to prevent damaging the item.

As such as filter is undesirable for API calls, this commit also skips
this logic in case of an API invocation.

patches/server/Friction-API.patch

@@ -137,7 +137,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
 +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
 @@ -0,0 +0,0 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
-         nmsStack.hurtAndBreak(amount, this.getHandle(), slot);
+         nmsStack.hurtAndBreakWithoutChecks(amount, this.getHandle(), slot);
      }
      // Paper end - ItemStack damage API
 +