Pelican v7.4.1 — Pelican Platform

Release

Fix the issue where Pelican won't exit main process if error group goroutine returns error, unless an error returns in the main goroutine
Fix the panic at the director when a cache advertise itself to the director, as we didn't have the case for cache when doing version compatibility check
Improve logging at program exit to be consistent.
Improve cache error group, remove duplicated exit handler that root.go already had.

Fix duplicated director file transfer tests
Added three Prometheus metrics recording number of test file transfers the director issues:
- pelican_director_total_ftx_test_suite: total number of test suite the director issued, which means how many times the director started a new test go routine to an origin
- pelican_director_active_ftx_test_suite: the number of active test suite running per origin, which should be 1, meaning only one active test go routine is running per origin. This will be a good indicator of whether the director is doing wild things.
- pelican_director_total_ftx_test_runs: the total number of test file transfer runs per origin. i.e. How many tests in total were ran per origin. We run A test per 15s (by default) per origin, so this is also a good indicator of whether the origin is up or whether the director is going crazy. It comes with label status and report_status with value Success and Failure indicating if the transfer itself was successful and the reporting to the origin was successful.

Fix the issue where Pelican won't exit main process if error group goroutine returns error, unless an error returns in the main goroutine
Fix the panic at the director when a cache advertise itself to the director, as we didn't have the case for cache when doing version compatibility check
Improve logging at program exit to be consistent.
Improve cache error group, remove duplicated exit handler that root.go already had.

v7.4.2