Adapt timesheet PDF export for semantic work package identifiers

The work package column hardcoded the numeric id. Using formatted_id
renders the project-based identifier in semantic mode.

modules/reporting/app/workers/cost_query/pdf/timesheet_generator.rb

@@ -224,7 +224,7 @@ class CostQuery::PDF::TimesheetGenerator
 
     href = url_helpers.work_package_url(entry.entity)
     {
-      content: "#{make_link_href(href, "##{entry.entity.id}")} #{entry.entity.subject || ''}",
+      content: "#{make_link_href(href, entry.entity.formatted_id)} #{entry.entity.subject || ''}",
       inline_format: true
     }
   end

modules/reporting/spec/workers/cost_query/pdf/timesheet_generator_spec.rb

@@ -227,4 +227,16 @@ RSpec.describe CostQuery::PDF::TimesheetGenerator do
       expect(subject).to eq expected_document(false)
     end
   end
+
+  context "with semantic work package identifiers",
+          with_settings: { work_packages_identifier: "semantic", allow_tracking_start_and_end_times: false } do
+    before do
+      user_time_entry.entity.update_columns(identifier: "PROD-42", sequence_number: 42)
+    end
+
+    it "renders the semantic identifier in the work package column" do
+      expect(subject).to include("PROD-42")
+      expect(subject).not_to include("##{user_time_entry.entity.id}")
+    end
+  end
 end