fix: correct otlp endpoint formatting (#4646) #19525

Job	Run time
Check License Header	2m 26s
Check (windows-2022)	14m 27s
Check (ubuntu-20.04)	2m 16s
Build GreptimeDB binaries (ubuntu-20.04)	2m 46s
Build GreptimeDB binary (profile-CI) (ubuntu-20.04)	2m 55s
Check typos and docs	7s
Clippy	3m 31s
Rustfmt	35s
Toml Check	27s
coverage	17m 46s
Sqlness Test (Basic)	2m 34s
Sqlness Test (Remote WAL)	2m 51s
Fuzz Test (fuzz_create_table)	8m 8s
Fuzz Test (fuzz_alter_table)	7m 4s
Fuzz Test (fuzz_create_database)	7m 21s
Fuzz Test (fuzz_create_logical_table)	7m 11s
Fuzz Test (fuzz_alter_logical_table)	6m 18s
Fuzz Test (fuzz_insert)	6m 55s
Fuzz Test (fuzz_insert_logical_table)	7m 9s
Fuzz Test with Chaos (Distributed, Remote WAL, fuzz_migrate_mito_regions)	7m 33s
Fuzz Test with Chaos (Distributed, Remote WAL, fuzz_failover_mito_regions)	8m 25s
Fuzz Test (Distributed, Remote WAL, fuzz_create_table)	9m 26s
Unstable Fuzz Test (unstable_fuzz_create_table_standalone)	6m 10s
Fuzz Test with Chaos (Distributed, Remote WAL, fuzz_failover_metric_regions)	9m 9s
Fuzz Test (Distributed, Remote WAL, fuzz_alter_table)	8m 43s
Fuzz Test (Distributed, Remote WAL, fuzz_create_database)	8m 46s
Fuzz Test (Distributed, Remote WAL, fuzz_create_logical_table)	9m 49s
Fuzz Test (Distributed, Remote WAL, fuzz_alter_logical_table)	9m 54s
Fuzz Test (Distributed, Remote WAL, fuzz_insert)	8m 49s
Fuzz Test (Distributed, Remote WAL, fuzz_insert_logical_table)	9m 38s
	3h 19m 9s

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