fix(Core/Player) internally handle expertise as float (#21967)

The core will no longer truncated the expertise (from float to int) value on the server side.

src/server/game/Entities/Player/Player.cpp

@@ -5233,9 +5233,9 @@ float Player::GetExpertiseDodgeOrParryReduction(WeaponAttackType attType) const
     switch (attType)
     {
         case BASE_ATTACK:
-            return GetUInt32Value(PLAYER_EXPERTISE) / 4.0f;
+            return m_Expertise / 4.0f;
         case OFF_ATTACK:
-            return GetUInt32Value(PLAYER_OFFHAND_EXPERTISE) / 4.0f;
+            return m_OffhandExpertise / 4.0f;
         default:
             break;
     }