Output role name along with container logs

[lewispb]

Improves the output of kamal app logs -q -n 1, by printing the role instead of the word "App"

Before

App Host: bc4-beta-jobs-03
2024-11-22T11:30:41.641044197Z 172.18.0.6 - - [22/Nov/2024:11:30:41 +0000] "GET /metrics HTTP/1.1" 200 - 0.0102

App Host: bc4-beta-jobs-03
2024-11-22T11:30:41.378680867Z 172.18.0.6 - - [22/Nov/2024:11:30:41 +0000] "GET /metrics HTTP/1.1" 200 - 0.0005

After

solid_queue_dispatcher Host: bc4-beta-jobs-03
2024-11-22T11:30:41.641044197Z 172.18.0.6 - - [22/Nov/2024:11:30:41 +0000] "GET /metrics HTTP/1.1" 200 - 0.0102

resque_jobs Host: bc4-beta-jobs-03
2024-11-22T11:30:41.378680867Z 172.18.0.6 - - [22/Nov/2024:11:30:41 +0000] "GET /metrics HTTP/1.1" 200 - 0.0005

[djmb]

Hi @lewispb - we've got a test failure on test/integration/app_test.rb:23