Michael Strelan
--- a/core/lib/Drupal/Component/Assertion/Inspector.php
+++ b/core/lib/Drupal/Component/Assertion/Inspector.php
    if (!is_array($array)) {
      return FALSE;
    }
-    $i = 0;
-
-    foreach (array_keys($array) as $key) {
-      if ($i !== $key) {
-        return FALSE;
-      }
-      $i++;
-    }
-    return TRUE;
+    return array_is_list($array);
--- a/core/lib/Drupal/Component/Assertion/Inspector.php
+++ b/core/lib/Drupal/Component/Assertion/Inspector.php
-        foreach ($args as $key) {
-          if (!array_key_exists($key, $member)) {
-            return FALSE;
-          }
-        }
-      }
-      return TRUE;
-    }
-    return FALSE;
+    return static::assertAll(
+      fn ($member) => array_all(
+        $args,
+        fn ($key) => array_key_exists($key, $member),
+      ),
+      $traversable,
+    );
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
    - vendor/bin/drush config:inspect --statistics > HEAD.json
    # Return to the MR commit being tested, conditionally install updates, always rebuild the container.
    - git checkout -f $CI_COMMIT_SHA
+    # Composer-install Drush & the Config Inspector module again to prevent autoloading issues.
+    - composer require drush/drush drupal/config_inspector || exit 100