chore: add more content type support for log inserter api #49

Job	Run time
Check License Header	1m 16s
Check typos and docs	5s
Check (windows-2022)	16m 22s
Build GreptimeDB binaries (ubuntu-20.04)	14m 4s
Check (ubuntu-20.04)	9m 30s
Build GreptimeDB binary (profile-CI) (ubuntu-20.04)	13m 30s
Clippy	10m 3s
Rustfmt	21s
Toml Check	27s
coverage	1s
Fuzz Test (Distributed, Disk) (fuzz_create_table)	12m 48s
Fuzz Test (Distributed, Disk) (fuzz_alter_table)	13m 31s
Fuzz Test (Distributed, Disk) (fuzz_create_database)	13m 6s
Fuzz Test (Distributed, Disk) (fuzz_create_logical_table)	13m 21s
Fuzz Test (Distributed, Disk) (fuzz_alter_logical_table)	13m 55s
Fuzz Test (Distributed, Disk) (fuzz_insert)	12m 50s
Fuzz Test (Distributed, Disk) (fuzz_insert_logical_table)	14m 18s
Unstable Fuzz Test (unstable_fuzz_create_table_standalone)	16m 27s
Sqlness Test with Kafka Wal (ubuntu-20.04)	3m 0s
Sqlness Test (ubuntu-20.04)	2m 26s
Fuzz Test (fuzz_create_table)	10m 35s
Fuzz Test (fuzz_alter_table)	10m 32s
Fuzz Test (fuzz_create_database)	11m 12s
Fuzz Test (fuzz_create_logical_table)	10m 57s
Fuzz Test (fuzz_alter_logical_table)	10m 59s
Fuzz Test (fuzz_insert)	11m 1s
Fuzz Test (fuzz_insert_logical_table)	11m 0s
	4h 17m 37s

Provide feedback