Ignore not found errors when deleting files from s3

Not found doesn't really matter as we are trying to delete them anyway.
This either means the scan has crashed before any files were uploaded or they were deleted by hand

Author: J12934

operator/controllers/execution/scan_controller.go

@@ -186,14 +186,19 @@ func removeString(slice []string, s string) (result []string) {
 	return
 }
 
+var errNotFound = "The specified key does not exist."
+
 func (r *ScanReconciler) handleFinalizer(scan *executionv1.Scan) error {
 	if containsString(scan.ObjectMeta.Finalizers, s3StorageFinalizer) {
 		bucketName := os.Getenv("S3_BUCKET")
 		r.Log.V(0).Info("Deleting External Files from FileStorage", "ScanUID", scan.UID)
-		if err := r.MinioClient.RemoveObject(bucketName, fmt.Sprintf("scan-%s/%s", scan.UID, scan.Status.RawResultFile)); err != nil {
+		err := r.MinioClient.RemoveObject(bucketName, fmt.Sprintf("scan-%s/%s", scan.UID, scan.Status.RawResultFile))
+		if err != nil && err.Error() != errNotFound {
 			return err
 		}
-		if err := r.MinioClient.RemoveObject(bucketName, fmt.Sprintf("scan-%s/findings.json", scan.UID)); err != nil {
+		err = r.MinioClient.RemoveObject(bucketName, fmt.Sprintf("scan-%s/findings.json", scan.UID))
+
+		if err != nil && err.Error() != errNotFound {
 			return err
 		}