[11.x] Fixes missing ExecutableFinder import (#52912)

* Included ExecutableFinder

* Update PhpExecutableFinder.php

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Co-authored-by: Mior Muhammad Zaki <crynobone@gmail.com>

src/Illuminate/Support/Process/PhpExecutableFinder.php

@@ -2,6 +2,7 @@
 
 namespace Illuminate\Support\Process;
 
+use Symfony\Component\Process\ExecutableFinder;
 use Symfony\Component\Process\PhpExecutableFinder as SymfonyPhpExecutableFinder;
 
 class PhpExecutableFinder extends SymfonyPhpExecutableFinder