importer: fix generated terraform schema file names

[wuxu92]

Fixes: #4358

The Data-api tool searches for schema files in the Terraform directory with filenames like xxx-Resource-xxx-Schema.json, but the filenames generated by the importer tool did not match. This PR renames the generated schema files to align with Data-api logic:

pandora/tools/data-api-repository/repository/helpers_parse.go

Lines 409 to 414 in 6edf0c8

	// The Main Schema Model is in: `%s-Resource-Schema.json`
	// Additional Files are in: `%s-Resource-*-Schema.json`
	schemaModelFiles, err := listFilesMatching(terraformDirectory, fmt.Sprintf("%s-Resource-", resourceName), ".json")
	if err != nil {
	return nil, fmt.Errorf("listing Test files: %+v", err)
	}

This PR successfully generates resources for the AKS Fleet Manager: