hotfix: e2e accessibility tests

Author: oscar-escire

src/app/shared/comcol/comcol-page-browse-by/comcol-page-browse-by.component.html

@@ -11,7 +11,7 @@ <h2 class="comcol-browse-label">{{'browse.comcol.head' | translate}}</h2>
             [routerLink]="option.routerLink"
             [queryParams]="option.params"
             [class.active]="(currentOption$ | async)?.id === option.id"
-            role="link"
+            role="tab"
             tabindex="0">
             {{ option.label | translate }}
           </a>