Merge branch '38359-dropdown-regression' into 'master'

Fixed regression for dropdowns

Closes #38359

See merge request gitlab-org/gitlab!21388

app/assets/stylesheets/framework/dropdowns.scss

@@ -288,7 +288,7 @@
     list-style: none;
     padding: 0 1px;
 
-    a:not(.help-link),
+    > a,
     button,
     .menu-item {
       @include dropdown-link;