Add storage provider error handling on reading existing files

storage/storage.go

@@ -34,7 +34,10 @@ func (sp FileSystemStorageProvider) StoreRaw(bucketName string, objectName strin
 }
 
 func (sp FileSystemStorageProvider) StoreExisting(bucketName string, objectName string, existingFilePath string) (string, error) {
-	bytesRead, _ := afero.ReadFile(sp.fileSystem, existingFilePath)
+	bytesRead, err := afero.ReadFile(sp.fileSystem, existingFilePath)
+	if err != nil {
+		return "", err
+	}
 
 	return sp.StoreRaw(bucketName, objectName, bytesRead)
 }