add zipfile to updateFunctionCode (#182)

Issue aws-controllers-k8s/community#2551

Description of changes:
  - Now includes the zipFile data in the AWS API call when SHA256 changes

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

Author: rushmash91

pkg/resource/function/hooks.go

@@ -443,6 +443,9 @@ func (rm *resourceManager) updateFunctionCode(
 			if dspec.Code.S3ObjectVersion != nil {
 				input.S3ObjectVersion = aws.String(*dspec.Code.S3ObjectVersion)
 			}
+			if dspec.Code.ZipFile != nil {
+				input.ZipFile = dspec.Code.ZipFile
+			}
 		} else if delta.DifferentAt("Spec.Code.ImageURI") && dspec.Code.ImageURI != nil {
 			if dspec.Code.ImageURI != nil {
 				input.ImageUri = aws.String(*dspec.Code.ImageURI)