warlock: fix mastery coef for affli 1.63 -> 1.625

The tooltip incorrectly states that a point of mastery gives 1.63%
increased periodic shadow damage, but both dbc values and ingame tests
show that value to be 1.625 instead.

Tests illustrating the differences ingame:

990 mastery: https://classic.warcraftlogs.com/reports/dMA2t6wLjD7TcCpN#fight=4&type=damage-done&view=events&ability=-172
1000 mastery: https://classic.warcraftlogs.com/reports/dMA2t6wLjD7TcCpN#fight=5&type=damage-done&view=events&ability=-172

sim/warlock/affliction/affliction.go

@@ -39,7 +39,7 @@ type AfflictionWarlock struct {
 }
 
 func (affliction AfflictionWarlock) getMasteryBonus() float64 {
-	return math.Floor(13.04+1.63*affliction.GetMasteryPoints()) / 100.0
+	return math.Floor(13.04+1.625*affliction.GetMasteryPoints()) / 100.0
 }
 
 func (affliction *AfflictionWarlock) GetWarlock() *warlock.Warlock {

ui/core/constants/mechanics.ts

@@ -52,7 +52,7 @@ export const masteryPercentPerPoint: Map<Spec, number> = new Map([
 	[Spec.SpecDisciplinePriest, 2.5],
 	[Spec.SpecHolyPriest, 1.25],
 	[Spec.SpecShadowPriest, 1.45],
-	[Spec.SpecAfflictionWarlock, 1.63],
+	[Spec.SpecAfflictionWarlock, 1.625],
 	[Spec.SpecDemonologyWarlock, 2.3],
 	[Spec.SpecDestructionWarlock, 1.35],
 ]);