[Imporve] add sequence type header

[mklzl]

Proposed changes

add new stream load header : function_column.sequence_col

doc link: https://doris.apache.org/docs/data-operate/update-delete/sequence-column-manual/

Issue Number: close #xxx

Problem Summary:

Describe the overview of changes.

Checklist(Required)

1. Does it affect the original behavior: (Yes/No/I Don't know)
2. Has unit tests been added: (Yes/No/No Need)
3. Has document been added or modified: (Yes/No/No Need)
4. Does it need to update dependencies: (Yes/No)
5. Are there any changes that cannot be rolled back: (Yes/No)

Further comments

If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...

[mklzl]

closed : instead of args : "sink.properties.function_column.sequence_col"