Merge pull request #59172 from fisherxu/removeyear

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Remove YEAR field of all generated files and fix kubernetes boilerplate checker

**What this PR does / why we need it**:
Remove YEAR field of all generated files and fix kubernetes boilerplate checker
xref: [remove YEAR fileds in gengo #91](https://github.com/kubernetes/gengo/pull/91)

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes [#gengo/issues/24](https://github.com/kubernetes/gengo/issues/24)

**Special notes for your reviewer**:
/cc @thockin @lavalamp @sttts

**Release note**:

```release-note
NONE
```

Kubernetes-commit: e40ffd71972b820aeed283946e880aa2479f8524

vendor/k8s.io/apimachinery/pkg/conversion/queryparams/convert.go

@@ -174,6 +174,9 @@ func convertStruct(result url.Values, st reflect.Type, sv reflect.Value) {
 			kind = ft.Kind()
 			if !field.IsNil() {
 				field = reflect.Indirect(field)
+				// If the field is non-nil, it should be added to params
+				// and the omitempty should be overwite to false
+				omitempty = false
 			}
 		}