Use info colour for merged search results instead of primary

app/helpers/search_helper.rb

@@ -406,7 +406,7 @@ module SearchHelper
     # Closed is considered "danger" for MR so we need to handle separately
     if issuable.is_a?(::MergeRequest)
       if issuable.merged?
-        :primary
+        :info
       elsif issuable.closed?
         :danger
       else

changelogs/unreleased/284392-use-info-style-for-merged-instead-of-primary.yml

+---
+title: Use info colour for merged search results instead of primary
+merge_request: 55008
+author:
+type: changed

spec/helpers/search_helper_spec.rb

@@ -580,7 +580,7 @@ RSpec.describe SearchHelper do
   describe '#issuable_state_to_badge_class' do
     context 'with merge request' do
       it 'returns correct badge based on status' do
-        expect(issuable_state_to_badge_class(build(:merge_request, :merged))).to eq(:primary)
+        expect(issuable_state_to_badge_class(build(:merge_request, :merged))).to eq(:info)
         expect(issuable_state_to_badge_class(build(:merge_request, :closed))).to eq(:danger)
         expect(issuable_state_to_badge_class(build(:merge_request, :opened))).to eq(:success)
       end