(maint) Fix object_id assertion in catalog spec

Author: GabrielNagy

spec/unit/resource/catalog_spec.rb

@@ -205,7 +205,7 @@
     end
 
     it "should set itself as the catalog for each converted resource" do
-      @catalog.vertices.each { |v| expect(v.catalog.object_id).to equal(@catalog.object_id) }
+      @catalog.vertices.each { |v| expect(v.catalog.object_id).to eql(@catalog.object_id) }
     end
 
     # This tests #931.