Fixes Brandish Spear splash area (#5313)

* Fixes #5294.
* Fixes the area of effect for Brandish Spear.
Thanks to @PipeDeveloper!

db/re/skill_db.yml

@@ -2111,7 +2111,7 @@ Body:
     HitCount: -3
     Element: Weapon
     SplashArea: 2
-    ActiveInstance: 3
+    ActiveInstance: 5
     Knockback: 2
     CastTime: 500
     Duration1: 1000