store interceptors for use with Collision

this is a workaround for php bug https://github.com/php/php-src/issues/10623, that prevents Collision to retrieve info about the interceptor handler closure. (see https://github.com/nunomaduro/collision/pull/255)

src/Concerns/Pipeable.php

@@ -19,6 +19,13 @@ trait Pipeable
      */
     private static array $pipes = [];
 
+    /**
+     * The list of interceptors.
+     *
+     * @var array<string, array<Closure(Closure, mixed ...$arguments): void>>
+     */
+    private static array $interceptors = [];
+
     /**
      * Register a pipe to be applied before an expectation is checked.
      */
@@ -38,6 +45,8 @@ trait Pipeable
             $filter = fn ($value): bool => $value instanceof $filter;
         }
 
+        self::$interceptors[$name][] = $handler;
+
         $this->pipe($name, function ($next, ...$arguments) use ($handler, $filter): void {
             /* @phpstan-ignore-next-line */
             if ($filter($this->value, ...$arguments)) {