Add missing DamageCause for EntityDamageByBlockEvent (#6352)

patches/server/0740-call-EntityDamageByBlockEvent-for-campfires.patch

@@ -18,3 +18,18 @@ index 2519a0f511f0a6065459cd2fe2d9a3e68e55d222..2c334ce3fc3cf86704dee9397166119a
          }
  
          super.entityInside(state, world, pos, entity);
+diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+index d01d4ca873f8225d3503ecb102ce2eb7bfced421..622a0f23db838b839f76722df0e5480ec927b4a2 100644
+--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
++++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+@@ -1009,6 +1009,10 @@ public class CraftEventFactory {
+                 cause = DamageCause.HOT_FLOOR;
+             } else if (source == DamageSource.MAGIC) {
+                 cause = DamageCause.MAGIC;
++            // Paper start
++            } else if (source == DamageSource.IN_FIRE) {
++                cause = DamageCause.FIRE;
++            // Paper end
+             } else {
+                 throw new IllegalStateException(String.format("Unhandled damage of %s by %s from %s", entity, damager, source.msgId));
+             }