[CELEBORN-1236][METRICS] Celeborn add metrics about thread pool
### What changes were proposed in this pull request?
Add metrics about worker's thread pool, help admin to observe the thread pool's work status.
ThreadPool list as below:
1. celeborn-dispatcher
2. celeborn-netty-rpc-connection-executor
3. worker-disk-{mount_point}-cleaner
4. worker-device-checker
5. flusher-{mount_point}
6. worker-file-sorter-executor
7. worker-data-replicator
8. worker-files-committer
9. worker-expired-shuffle-cleaner
```
metrics_active_thread_count_Value{role="Worker",threadPool="celeborn-dispatcher"} 64 1706237338484
metrics_pending_task_count_Value{role="Worker",threadPool="celeborn-dispatcher"} 0 1706237338484
metrics_pool_size_Value{role="Worker",threadPool="celeborn-dispatcher"} 64 1706237338484
metrics_core_pool_size_Value{role="Worker",threadPool="celeborn-dispatcher"} 64 1706237338484
metrics_maximum_pool_size_Value{role="Worker",threadPool="celeborn-dispatcher"} 64 1706237338484
metrics_largest_pool_size_Value{role="Worker",threadPool="celeborn-dispatcher"} 64 1706237338484
metrics_active_thread_count_Value{role="Worker",threadPool="celeborn-netty-rpc-connection-executor"} 0 1706237338484
metrics_pending_task_count_Value{role="Worker",threadPool="celeborn-netty-rpc-connection-executor"} 0 1706237338484
metrics_pool_size_Value{role="Worker",threadPool="celeborn-netty-rpc-connection-executor"} 0 1706237338484
metrics_core_pool_size_Value{role="Worker",threadPool="celeborn-netty-rpc-connection-executor"} 64 1706237338484
metrics_maximum_pool_size_Value{role="Worker",threadPool="celeborn-netty-rpc-connection-executor"} 64 1706237338484
metrics_largest_pool_size_Value{role="Worker",threadPool="celeborn-netty-rpc-connection-executor"} 1 1706237338484
metrics_active_thread_count_Value{role="Worker",threadPool="worker-disk-/-cleaner"} 0 1706237338484
metrics_pending_task_count_Value{role="Worker",threadPool="worker-disk-/-cleaner"} 0 1706237338484
metrics_pool_size_Value{role="Worker",threadPool="worker-disk-/-cleaner"} 0 1706237338484
metrics_core_pool_size_Value{role="Worker",threadPool="worker-disk-/-cleaner"} 4 1706237338484
metrics_maximum_pool_size_Value{role="Worker",threadPool="worker-disk-/-cleaner"} 4 1706237338484
metrics_largest_pool_size_Value{role="Worker",threadPool="worker-disk-/-cleaner"} 0 1706237338485
metrics_active_thread_count_Value{role="Worker",threadPool="worker-device-checker"} 0 1706237338485
metrics_pending_task_count_Value{role="Worker",threadPool="worker-device-checker"} 0 1706237338485
metrics_pool_size_Value{role="Worker",threadPool="worker-device-checker"} 2 1706237338485
metrics_core_pool_size_Value{role="Worker",threadPool="worker-device-checker"} 5 1706237338485
metrics_maximum_pool_size_Value{role="Worker",threadPool="worker-device-checker"} 5 1706237338485
metrics_largest_pool_size_Value{role="Worker",threadPool="worker-device-checker"} 2 1706237338485
metrics_thread_count_Value{role="Worker",threadPool="LocalFlusher1441328175-/"} 2 1706237338485
metrics_thread_is_terminated_count_Value{role="Worker",threadPool="LocalFlusher1441328175-/"} 0 1706237338485
metrics_thread_is_shutdown_count_Value{role="Worker",threadPool="LocalFlusher1441328175-/"} 0 1706237338485
metrics_active_thread_count_Value{role="Worker",threadPool="worker-file-sorter-executor"} 0 1706237338485
metrics_pending_task_count_Value{role="Worker",threadPool="worker-file-sorter-executor"} 0 1706237338485
metrics_pool_size_Value{role="Worker",threadPool="worker-file-sorter-executor"} 0 1706237338485
metrics_core_pool_size_Value{role="Worker",threadPool="worker-file-sorter-executor"} 24 1706237338485
metrics_maximum_pool_size_Value{role="Worker",threadPool="worker-file-sorter-executor"} 24 1706237338485
metrics_largest_pool_size_Value{role="Worker",threadPool="worker-file-sorter-executor"} 0 1706237338485
metrics_active_thread_count_Value{role="Worker",threadPool="worker-data-replicator"} 0 1706237338485
metrics_pending_task_count_Value{role="Worker",threadPool="worker-data-replicator"} 0 1706237338485
metrics_pool_size_Value{role="Worker",threadPool="worker-data-replicator"} 0 1706237338485
metrics_core_pool_size_Value{role="Worker",threadPool="worker-data-replicator"} 64 1706237338485
metrics_maximum_pool_size_Value{role="Worker",threadPool="worker-data-replicator"} 64 1706237338485
metrics_largest_pool_size_Value{role="Worker",threadPool="worker-data-replicator"} 0 1706237338485
metrics_active_thread_count_Value{role="Worker",threadPool="worker-files-committer"} 0 1706237338485
metrics_pending_task_count_Value{role="Worker",threadPool="worker-files-committer"} 0 1706237338485
metrics_pool_size_Value{role="Worker",threadPool="worker-files-committer"} 0 1706237338485
metrics_core_pool_size_Value{role="Worker",threadPool="worker-files-committer"} 32 1706237338485
metrics_maximum_pool_size_Value{role="Worker",threadPool="worker-files-committer"} 32 1706237338485
metrics_largest_pool_size_Value{role="Worker",threadPool="worker-files-committer"} 0 1706237338485
metrics_active_thread_count_Value{role="Worker",threadPool="worker-expired-shuffle-cleaner"} 0 1706237338485
metrics_pending_task_count_Value{role="Worker",threadPool="worker-expired-shuffle-cleaner"} 0 1706237338485
metrics_pool_size_Value{role="Worker",threadPool="worker-expired-shuffle-cleaner"} 2 1706237338485
metrics_core_pool_size_Value{role="Worker",threadPool="worker-expired-shuffle-cleaner"} 64 1706237338485
metrics_maximum_pool_size_Value{role="Worker",threadPool="worker-expired-shuffle-cleaner"} 64 1706237338485
metrics_largest_pool_size_Value{role="Worker",threadPool="worker-expired-shuffle-cleaner"} 2 1706237338485
```
### Why are the changes needed?
Help observe server status
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
MT
Closes #2239 from AngersZhuuuu/CLEBORN-1236.
Authored-by: Angerszhuuuu <angers.zhu@gmail.com>
Signed-off-by: Angerszhuuuu <angers.zhu@gmail.com>
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