WIP: Debug knapsack log [RUN ALL RSPEC]

What does this MR do?

Trying to debug knapsack log.

Some jobs show list of knapsack node specs:

==> 'scripts/gitaly-test-spawn' succeeded in 5 seconds.
$ source ./scripts/rspec_helpers.sh
$ rspec_paralellized_job "--tag ~quarantine --tag ~geo --tag ~level:migration"
KNAPSACK_TEST_FILE_PATTERN: spec/{bin,channels,config,db,dependencies,elastic,elastic_integration,experiments,factories,finders,frontend,graphql,haml_lint,helpers,initializers,javascripts,lib,models,policies,presenters,rack_servers,replicators,routing,rubocop,serializers,services,sidekiq,spam,support_specs,tasks,uploaders,validators,views,workers,tooling}{,/**/}*_spec.rb
Knapsack node specs:
spec/services/merge_requests/update_service_spec.rb
...
Knapsack report generator started!

Some jobs just show:

==> 'scripts/gitaly-test-spawn' succeeded in 5 seconds.
$ source ./scripts/rspec_helpers.sh
$ rspec_paralellized_job "--tag ~quarantine --tag ~geo --tag ~level:migration"
KNAPSACK_TEST_FILE_PATTERN: ee/spec/{features}{,/**/}*_spec.rb
Knapsack report generator started!