Update default spinner color to pajamas specs

MR: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/58517

app/assets/stylesheets/framework/spinner.scss

@@ -20,7 +20,7 @@
   }
 }
 
-@mixin spinner($size: 16px, $border-width: 2px, $color: $orange-400) {
+@mixin spinner($size: 16px, $border-width: 2px, $color: $gray-700) {
   border-radius: 50%;
   position: relative;
   margin: 0 auto;
@@ -46,7 +46,7 @@
   }
 
   &.spinner-dark {
-    @include spinner-color($gray-500);
+    @include spinner-color($gray-700);
   }
 
   &.spinner-light {

changelogs/unreleased/update-spinner-color-to-pajamas.yml

+---
+title: Update default spinner color to pajamas
+merge_request: 58517
+author:
+type: changed