[11287] Add dummy effect of spell 62105 and dummy aura effect of 62248

Note: spell 62105 are still considered to be negative, despite explicit exception added in IsPositiveEffect and will unexpectedly put caster in combat.

Signed-off-by: NoFantasy <nofantasy@nf.no>

src/game/SpellMgr.cpp

@@ -639,6 +639,7 @@ bool IsPositiveEffect(uint32 spellId, SpellEffectIndex effIndex)
                     return false;
                 case 49634:                                 // Sergeant's Flare
                 case 54530:                                 // Opening
+                case 62105:                                 // To'kini's Blowgun
                     return true;
                 default:
                     break;