(post opensearch): post log to opensearch 2.3 error

[taylord0ng]

Describe the bug

when update opensearch 2.3
logging error:
{"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"Action/metadata line [1] contains an unknown parameter [_type]"}],"type":"illegal_argument_exception","reason":"Action/metadata line [1] contains an unknown parameter [_type]"},"status":400}

Expected Behavior

post log to opensearch

Current Behavior

post error

Reproduction Steps

update opensearch to 2.3

Possible Solution

No response

Additional Information/Context

No response

Log Hub Version

1.1.1

AWS Region. e.g., us-east-1

us-east-1

Other information

No response

[taylord0ng]

according aws/aws-for-fluent-bit#507, add this(Suppress_Type_Name On) to all output