Resolve Gitaly N+1 for CI/CD environments statuses

app/models/project.rb

@@ -1914,9 +1914,8 @@ class Project < ApplicationRecord
     @route_maps_by_commit ||= Hash.new do |h, sha|
       h[sha] = begin
         data = repository.route_map_for(sha)
-        next unless data
 
-        Gitlab::RouteMap.new(data)
+        Gitlab::RouteMap.new(data) if data
       rescue Gitlab::RouteMap::FormatError
         nil
       end

spec/controllers/projects/merge_requests_controller_spec.rb

@@ -922,7 +922,7 @@ describe Projects::MergeRequestsController do
           expect(merge_request).to be_present
 
           expect { get_ci_environments_status }
-            .not_to change { Gitlab::GitalyClient.get_request_count }
+            .to change { Gitlab::GitalyClient.get_request_count }.by_at_most(1)
         end
       end
 
@@ -937,7 +937,7 @@ describe Projects::MergeRequestsController do
           expect(merge_request.merge_request_diff.merge_request_diff_files).to be_many
 
           expect { get_ci_environments_status }
-            .not_to change { Gitlab::GitalyClient.get_request_count }
+            .to change { Gitlab::GitalyClient.get_request_count }.by_at_most(1)
         end
       end
     end