fix(core): add missing ariaDescription to InternalsController (#2727)

* fix(core): add ariaDescription to InternalsController

* chore(core): add changeset

Author: zeroedin

.changeset/rare-news-drum.md

@@ -0,0 +1,5 @@
+---
+"@patternfly/pfe-core": patch
+---
+
+`InternalsController`: added missing `ariaDescription` defined by ARIAMixin

core/pfe-core/controllers/internals-controller.ts

@@ -88,6 +88,7 @@ export class InternalsController implements ReactiveController, ARIAMixin {
   @aria ariaColIndexText: string | null = null;
   @aria ariaColSpan: string | null = null;
   @aria ariaCurrent: string | null = null;
+  @aria ariaDescription: string | null = null;
   @aria ariaDisabled: string | null = null;
   @aria ariaExpanded: string | null = null;
   @aria ariaHasPopup: string | null = null;