fixup! Split E2E tests based on test durations

Author: Janne Rönkkö

.github/workflows/shared-run-e2e.yml

@@ -143,7 +143,6 @@ on:
         description:
           SSH key that can be used to write to HSLdevcom/jore4-ci-data repository.
         required: false
-        default: null
 
 jobs:
   run_e2e_tests: