Updating hover state to match other pipeline graph buttons

- Issue: https://gitlab.com/gitlab-org/gitlab/-/issues/322017

Changelog: other

app/assets/stylesheets/page_bundles/_pipeline_mixins.scss

@@ -147,7 +147,7 @@
       display: block;
 
       &:hover {
-        box-shadow: inset 0 0 0 0.0625rem $dropdown-toggle-active-border-color;
+        box-shadow: inset 0 0 0 2px var(--gray-400, $gray-400);
         background-color: var(--gray-50, $gray-50);
       }
 

changelogs/unreleased/322017-updating-hover-focus-states-on-pipeline-buttons.yml

+---
+title: updating hover state to match other pipeline graph buttons
+merge_request: 60801
+author: Matt Saddington @mattsaddo
+type: other