feat: add fallback logic for vmagent sending wrong content type (#4009) #16550

Job	Run time
Check typos and docs	6s
Check License Header	1m 12s
Build GreptimeDB binary (profile-CI) (ubuntu-20.04)	2m 25s
Build GreptimeDB binaries (ubuntu-20.04)	4m 21s
Check (windows-2022)	7m 1s
Toml Check	20s
Check (ubuntu-20.04)	1m 39s
Clippy	3m 7s
coverage	13m 51s
Rustfmt	22s
Fuzz Test (Distributed, Disk) (fuzz_create_table)	7m 0s
Fuzz Test (Distributed, Disk) (fuzz_alter_table)	6m 59s
Fuzz Test (Distributed, Disk) (fuzz_create_database)	6m 53s
Fuzz Test (Distributed, Disk) (fuzz_create_logical_table)	6m 33s
Fuzz Test (Distributed, Disk) (fuzz_alter_logical_table)	7m 34s
Fuzz Test (Distributed, Disk) (fuzz_insert)	7m 7s
Fuzz Test (Distributed, Disk) (fuzz_insert_logical_table)	6m 46s
Sqlness Test (ubuntu-20.04)	2m 35s
Fuzz Test (fuzz_create_table)	4m 46s
Unstable Fuzz Test (unstable_fuzz_create_table_standalone)	13m 14s
Sqlness Test with Kafka Wal (ubuntu-20.04)	5m 32s
Fuzz Test (fuzz_alter_table)	4m 41s
Fuzz Test (fuzz_create_database)	4m 49s
Fuzz Test (fuzz_create_logical_table)	5m 10s
Fuzz Test (fuzz_alter_logical_table)	5m 0s
Fuzz Test (fuzz_insert)	4m 44s
Fuzz Test (fuzz_insert_logical_table)	4m 46s
	2h 18m 33s

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