Fixes an error in PHPStan with UnifyModelDatesWithCastsRector.php

phpstan.neon

@@ -19,10 +19,6 @@ parameters:
         # false positive
         - '#Parameter \#1 \$value of static method PhpParser\\BuilderHelpers\:\:normalizeValue\(\) expects array\|bool\|float\|int\|PhpParser\\Node\\Expr\|string\|UnitEnum\|null, mixed given#'
 
-        -
-            path: src/Rector/Class_/UnifyModelDatesWithCastsRector.php
-            message: '#Parameter \#1 \$array of function array_keys expects array, mixed given#'
-
         # rector co-variant
         - '#Parameter \#1 \$node (.*?) of method RectorLaravel\\(.*?)\:\:(refactor|refactorWithScope)\(\) should be contravariant with parameter \$node \(PhpParser\\Node\) of method Rector\\Contract\\Rector\\RectorInterface\:\:refactor\(\)#'
 

src/Rector/Class_/UnifyModelDatesWithCastsRector.php

@@ -19,6 +19,7 @@
 use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
 use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
 use Webmozart\Assert\Assert;
+use Webmozart\Assert\InvalidArgumentException;
 
 /**
  * @changelog https://github.com/laravel/framework/pull/32856
@@ -93,11 +94,18 @@ public function refactor(Node $node): ?Node
             return null;
         }
 
+        /** @var mixed[] $dates */
         $dates = $this->valueResolver->getValue($datesPropertyProperty->default);
         if (! is_array($dates)) {
             return null;
         }
 
+        try {
+            Assert::allString($dates);
+        } catch (InvalidArgumentException) {
+            return null;
+        }
+
         if ($dates === []) {
             return null;
         }
@@ -115,10 +123,19 @@ public function refactor(Node $node): ?Node
             return null;
         }
 
+        /** @var array<string, mixed> $casts */
         $casts = $this->valueResolver->getValue($castsPropertyProperty->default);
+        if (! is_array($casts)) {
+            return null;
+        }
+
         // exclude attributes added in $casts
         $missingDates = array_diff($dates, array_keys($casts));
-        Assert::allString($missingDates);
+        try {
+            Assert::allString($missingDates);
+        } catch (InvalidArgumentException) {
+            return null;
+        }
 
         foreach ($missingDates as $missingDate) {
             $castsPropertyProperty->default->items[] = new ArrayItem(