#3463494 Get test dependencies compatible with Drupal 11 [1.x]

Issue #3463494 for 8.x-1.x branch

composer_for_d11_testing.json

@@ -21,6 +21,7 @@
             "url": "https://packages.drupal.org/8"
         }
     },
+    "_comment": "cSpell:disable",
     "authors": [
         {
             "name": "Eric Schaefer (Eric Schaefer)",
@@ -43,6 +44,7 @@
             "role": "Maintainer"
         }
     ],
+    "_comment": "cSpell:enable",
     "support": {
         "issues": "https://www.drupal.org/project/issues/scheduler",
         "source": "https://git.drupalcode.org/project/scheduler"