fix(Core/Spell): Killing Spree range (#4097)

Co-authored-by: Keader <keader.android@gmail.com>

src/server/game/Spells/SpellMgr.cpp

@@ -5495,6 +5495,12 @@ void SpellMgr::LoadDbcDataCorrections()
         spellInfo->EffectTriggerSpell[0] = 68766;
     });
 
+    // Killing Spree (Off hand damage)
+    ApplySpellFix({ 57842 }, [](SpellEntry* spellInfo)
+    {
+        spellInfo->rangeIndex = 2; // Melee Range
+    });
+
     // Trial of the Crusader, Jaraxxus Intro spell
     ApplySpellFix({ 67888 }, [](SpellEntry* spellInfo)
     {