spec: skip flaky example for now

Refs LS-2168

Test Plan: passesjenkins

Change-Id: I0c32ede6b7adc0e79e3837f6a31e77795ef88c1f
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/263357
Reviewed-by: James Butters <jbutters@instructure.com>
Tested-by: Service Cloud Jenkins <svc.cloudjenkins@instructure.com>
QA-Review: Robin Kuss <rkuss@instructure.com>
Product-Review: Robin Kuss <rkuss@instructure.com>

spec/lib/cc/cc_exporter_spec.rb

@@ -28,6 +28,7 @@ describe "Common Cartridge exporting" do
   end
 
   it "should collect errors and finish running" do
+    skip("skip and fix with LS-2168")
     course = course_model
     user = user_model
     message = "fail"