[Bug report] Format 128 1D Barcode with 8 zeroes scanned as 6 zeroes

**Describe the bug**
I have a barcode I use for android testing. The ML Kit barcode scanner incorrectly scan it as `000000` instead of `00000000`


**To Reproduce**
Try scanning the above QRCode with this code

```kotlin
val barcodeImage = InputImage.fromFilePath(context, imageUri)
val barcodeScannerOptionsBuilder = BarcodeScannerOptions.Builder()
.setBarcodeFormats(Barcode.FORMAT_ALL_FORMATS)
.enableAllPotentialBarcodes()
val scanner = BarcodeScanning.getClient(barcodeScannerOptionsBuilder.build())
scanner.process(barcodeImage)
.addOnSuccessListener { barcodes ->
val barcode = barcodes[0].displayValue
println("Barcode: ${barcode}")
}
```

**Expected behavior**
I expect the barcode to be scanned as 8 zeroes: `00000000`
Instead it was scanned as 6 zeroes: `000000`.

**SDK Info:**
`com.google.mlkit:barcode-scanning:17.3.0`

**Smartphone:**
- Device/Simulator: Pixel 4 SDK 36 ARM64 Emulator (using an image from gallery)