Change rspec command

[ydah]

spec is unnecessary.

~/ydah/rspec-sidekiq remove-example
❯ bundle exec rspec spec
[rspec-sidekiq] WARNING! Sidekiq will *NOT* process jobs in this environment. See https://github.com/wspurgin/rspec-sidekiq/wiki/FAQ-&-Troubleshooting
..2025-06-19T09:02:47.940Z pid=56574 tid=15tu INFO: Sidekiq 7.3.9 connecting to Redis with options {:size=>10, :pool_name=>"internal", :url=>nil}
.................................................................................................................................................................................................

Finished in 0.10617 seconds (files took 0.54088 seconds to load)
195 examples, 0 failures

~/ydah/rspec-sidekiq remove-example
❯ bundle exec rspec
[rspec-sidekiq] WARNING! Sidekiq will *NOT* process jobs in this environment. See https://github.com/wspurgin/rspec-sidekiq/wiki/FAQ-&-Troubleshooting
..2025-06-19T09:02:50.611Z pid=56706 tid=15em INFO: Sidekiq 7.3.9 connecting to Redis with options {:size=>10, :pool_name=>"internal", :url=>nil}
.................................................................................................................................................................................................

Finished in 0.08648 seconds (files took 0.37149 seconds to load)
195 examples, 0 failures