[Fix] Fix get bytes from LinkHashMap

[Hisoka-X]

Purpose of this pull request

Fix get bytes size from LinkHashMap will throw exception at now.

Does this PR introduce any user-facing change?

no

How was this patch tested?

add new test.

Check list

• If any new Jar binary package adding in your PR, please add License Notice according
  New License Guide
• If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs
• If you are contributing the connector code, please check that the following files are updated:
  1. Update change log that in connector document. For more details you can refer to connector-v2
  2. Update plugin-mapping.properties and add new connector information in it
  3. Update the pom file of seatunnel-dist
• Update the release-note.

[hailin0]

Will other types of map be used?

[Hisoka-X]

This is the data circulated within SeaTunnelRow. We should standardize the type used when creating map type data in SeaTunnelRow to prevent burden on downstream parsing. For now, Hashmap and LinkHashMap are enough.

[hailin0]

ok