fixing lint on stripping metadata from dataclass types (#626) (#6177) (#631)

## Overview
Fixing the[ lint errors](#6177) from upstreaming [this PR](https://github.com/unionai/flyte/pull/626). This means that OSS and the fork remain consistent.

## Test Plan
This was tested as part of the original work.

## Rollout Plan (if applicable)
This PR does not effect functionality at all, it is purely cosmetic.

## Upstream Changes
Should this change be upstreamed to OSS (flyteorg/flyte)? If not, please uncheck this box, which is used for auditing. Note, it is the responsibility of each developer to actually upstream their changes. See [this guide](https://unionai.atlassian.net/wiki/spaces/ENG/pages/447610883/Flyte+-+Union+Cloud+Development+Runbook/#When-are-versions-updated%3F).
- [ ] To be upstreamed to OSS

## Issue
https://linear.app/unionai/issue/COR-2720/strip-metadata-from-dataclass-types-in-flyteworkflow-crd-interfaces

## Checklist
* [ ] Added tests
* [ ] Ran a deploy dry run and shared the terraform plan
* [ ] Added logging and metrics
* [ ] Updated [dashboards](https://unionai.grafana.net/dashboards) and [alerts](https://unionai.grafana.net/alerting/list)
* [ ] Updated documentation

Author: hamersaw

flytepropeller/pkg/compiler/transformers/k8s/utils.go

@@ -98,13 +98,13 @@ func StripTypeMetadata(t *core.LiteralType) *core.LiteralType {
 	}
 
 	// strip metadata from dataclass types
-	if c.Structure != nil && len(c.Structure.DataclassType) > 0 {
-		dataclassTypes := make(map[string]*core.LiteralType, len(c.Structure.DataclassType))
-		for k, v := range c.Structure.DataclassType {
+	if c.GetStructure() != nil && len(c.GetStructure().GetDataclassType()) > 0 {
+		dataclassTypes := make(map[string]*core.LiteralType, len(c.GetStructure().GetDataclassType()))
+		for k, v := range c.GetStructure().GetDataclassType() {
 			dataclassTypes[k] = StripTypeMetadata(v)
 		}
 
-		c.Structure.DataclassType = dataclassTypes
+		c.GetStructure().DataclassType = dataclassTypes
 	}
 
 	switch underlyingType := c.Type.(type) {