[Improve][Transform-v2] Refactor a transformRow from FilterFieldTransform

[loustler]

Purpose of this pull request

A logic of a transformRow(SeaTunnelRow) from FilteredFieldTransform is equals to a copy(int) from SeaTunnelRow.
So I think we no need to keep this duplicated code.

seatunnel/seatunnel-api/src/main/java/org/apache/seatunnel/api/table/type/SeaTunnelRow.java

Lines 87 to 96 in d1f5db9

	public SeaTunnelRow copy(int[] indexMapping) {
	Object[] newFields = new Object[indexMapping.length];
	for (int i = 0; i < indexMapping.length; i++) {
	newFields[i] = this.fields[indexMapping[i]];
	}
	SeaTunnelRow newRow = new SeaTunnelRow(newFields);
	newRow.setRowKind(this.getRowKind());
	newRow.setTableId(this.getTableId());
	return newRow;
	}

Does this PR introduce any user-facing change?

NO

How was this patch tested?

NO

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 plugin-mapping.properties and add new connector information in it
  2. Update the pom file of seatunnel-dist
  3. Add ci label in label-scope-conf
  4. Add e2e testcase in seatunnel-e2e
  5. Update connector plugin_config
• Update the release-note.

[zhilinli123]

+1

[Hisoka-X]

LGTM. Thanks @loustler