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GH-43667: [Java] Keeping Flight default header size consistent between server and client  (#43697)



### Rationale for this change

### What changes are included in this PR?
Flight client can send header size larger than server can accept. This PR is to keep default values consistent across server and client.

### Are these changes tested?

### Are there any user-facing changes?

* GitHub Issue: #43667

Authored-by: pankaj kesari <pankaj.kesari99@yahoo.com>
Signed-off-by: David Li <li.davidm96@gmail.com>