minor #32245 [Finder] docblock fixes (smoench)

This PR was merged into the 3.4 branch.

Discussion
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[Finder] docblock fixes

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no     <!-- see https://symfony.com/bc -->
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | N/A
| License       | MIT
| Doc PR        | N/A

This PR provides some docblock fixes found in #32243

Commits
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02ee4d0b05 [Finder] docblock fixes

src/Symfony/Component/Finder/Finder.php

@@ -528,7 +528,7 @@ class Finder implements \IteratorAggregate, \Countable
     /**
      * Searches files and directories which match defined rules.
      *
-     * @param string|array $dirs A directory path or an array of directories
+     * @param string|string[] $dirs A directory path or an array of directories
      *
      * @return $this
      *

src/Symfony/Component/Finder/Iterator/ExcludeDirectoryFilterIterator.php

@@ -25,7 +25,7 @@ class ExcludeDirectoryFilterIterator extends FilterIterator implements \Recursiv
 
     /**
      * @param \Iterator $iterator    The Iterator to filter
-     * @param array     $directories An array of directories to exclude
+     * @param string[]  $directories An array of directories to exclude
      */
     public function __construct(\Iterator $iterator, array $directories)
     {