Resolve "BS4: Link in code brackets has two different styles"

app/assets/stylesheets/framework/typography.scss

@@ -179,6 +179,10 @@
     font-weight: inherit;
   }
+  a > code {
+    color: $gl-link-color;
+  }
+
   dd {
     margin-left: $gl-padding;
   }

changelogs/unreleased/48542-code-link.yml

+---
+title: Fix link color in markdown code brackets
+merge_request: 20841
+author:
+type: fixed