Scripts/Spells: Implement mage talent "Pyrotechnics"

Port From (https://github.com/TrinityCore/TrinityCore/commit/e9d963760c1f4be95e655ecd50f1c6aceecdc1dd)

Source/Scripts/Spells/Mage.cs

@@ -73,6 +73,7 @@ struct SpellIds
     public const uint PhoenixFlames = 257541;
     public const uint PhoenixFlamesDamage = 257542;
     public const uint Pyroblast = 11366;
+    public const uint Pyrotechnics = 157644;
     public const uint RadiantSparkProcBlocker = 376105;
     public const uint RayOfFrostBonus = 208141;
     public const uint RayOfFrostFingersOfFrost = 269748;
@@ -1526,6 +1527,29 @@ class spell_mage_prismatic_barrier : AuraScript
     }
 }
 
+[Script] // 157642 - Pyrotechnics
+class spell_mage_pyrotechnics : AuraScript
+{
+    public override bool Validate(SpellInfo spellInfo)
+    {
+        return ValidateSpellInfo(SpellIds.Pyrotechnics);
+    }
+
+    void HandleProc(AuraEffect aurEff, ProcEventInfo procInfo)
+    {
+        if (procInfo.GetHitMask().HasAnyFlag(ProcFlagsHit.Critical))
+        {
+            PreventDefaultAction();
+            procInfo.GetActor().RemoveAurasDueToSpell(SpellIds.Pyrotechnics);
+        }
+    }
+
+    public override void Register()
+    {
+        OnEffectProc.Add(new(HandleProc, 0, AuraType.ProcTriggerSpell));
+    }
+}
+
 [Script] // 376103 - Radiant Spark
 class spell_mage_radiant_spark : AuraScript
 {