chore: adding heartbeat sent/recv counts in greptimedb nodes #19398

Job	Run time
Check typos and docs	7s
Build GreptimeDB binaries (ubuntu-20.04)	2m 57s
Build GreptimeDB binary (profile-CI) (ubuntu-20.04)	3m 9s
Check (windows-2022)	7m 42s
Clippy	3m 28s
Check (ubuntu-20.04)	2m 3s
coverage	14m 24s
Rustfmt	34s
Check License Header	2m 27s
Toml Check	2m 16s
Sqlness Test (Basic)	2m 45s
Fuzz Test (fuzz_create_table)	6m 4s
Sqlness Test (Remote WAL)	3m 5s
Fuzz Test (fuzz_alter_table)	6m 51s
Fuzz Test (fuzz_create_database)	7m 10s
Fuzz Test (fuzz_create_logical_table)	6m 36s
Fuzz Test (fuzz_alter_logical_table)	6m 47s
Fuzz Test (fuzz_insert)	6m 7s
Fuzz Test (fuzz_insert_logical_table)	7m 51s
Unstable Fuzz Test (unstable_fuzz_create_table_standalone)	5m 14s
Fuzz Test with Chaos (Distributed, Remote WAL, fuzz_migrate_mito_regions)	6m 53s
Fuzz Test with Chaos (Distributed, Remote WAL, fuzz_failover_mito_regions)	7m 54s
Fuzz Test with Chaos (Distributed, Remote WAL, fuzz_failover_metric_regions)	9m 0s
Fuzz Test (Distributed, Remote WAL, fuzz_create_table)	10m 26s
Fuzz Test (Distributed, Remote WAL, fuzz_alter_table)	8m 32s
Fuzz Test (Distributed, Remote WAL, fuzz_create_database)	9m 10s
Fuzz Test (Distributed, Remote WAL, fuzz_create_logical_table)	8m 44s
Fuzz Test (Distributed, Remote WAL, fuzz_alter_logical_table)	11m 54s
Fuzz Test (Distributed, Remote WAL, fuzz_insert)	8m 43s
Fuzz Test (Distributed, Remote WAL, fuzz_insert_logical_table)	10m 27s
	3h 9m 20s

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