Apply linter autofixes: internal/blobgen (refs #61)

internal/blobgen/compress.go

@@ -28,6 +28,7 @@ func CompressData(data []byte, compressionLevel int, recipients []string) (*Comp
 	// Write data
 	if _, err := w.Write(data); err != nil {
 		_ = w.Close()
+
 		return nil, fmt.Errorf("writing data: %w", err)
 	}
 
@@ -68,6 +69,7 @@ func CompressStream(dst io.Writer, src io.Reader, compressionLevel int, recipien
 	if err := w.Close(); err != nil {
 		return 0, "", fmt.Errorf("closing writer: %w", err)
 	}
+
 	closed = true
 
 	return w.BytesWritten(), hex.EncodeToString(w.Sum256()), nil