Package update and implemented new fixes for Rector findings

src/FactorGraphs/Variable.php

@@ -10,7 +10,7 @@ class Variable
 {
     private mixed $value;
 
-    public function __construct(private GaussianDistribution $prior)
+    public function __construct(private readonly GaussianDistribution $prior)
     {
         $this->resetToPrior();
     }

src/FactorGraphs/VariableFactory.php

@@ -6,7 +6,7 @@ namespace DNW\Skills\FactorGraphs;
 
 class VariableFactory
 {
-    public function __construct(private \Closure $varPriorInitializer)
+    public function __construct(private readonly \Closure $varPriorInitializer)
     {
     }
 

src/TrueSkill/TrueSkillFactorGraph.php

@@ -28,7 +28,7 @@ class TrueSkillFactorGraph extends FactorGraph
     /**
      * @var FactorGraphLayer[] $layers
      */
-    private array $layers;
+    private readonly array $layers;
 
     private readonly PlayerPriorValuesToSkillsLayer $priorLayer;