Modify code to build on Qt 6.9+

Author: DonLakeFlyer

src/Vehicle/VehicleSetup/Bootloader.cc

@@ -651,7 +651,10 @@ bool Bootloader::_ihxVerifyBytes(const FirmwareImage* image)
 
             for (int i=0; i<bytesToRead; i++) {
                 if ((uint8_t)imageBytes[bytesIndex + i] != readBuf[i]) {
-                    _errorString = tr("Compare failed: expected(0x%1) actual(0x%2) at address: 0x%3").arg(imageBytes[bytesIndex + i], 2, 16, QLatin1Char('0')).arg(readBuf[i], 2, 16, QLatin1Char('0')).arg(readAddress + i, 8, 16, QLatin1Char('0'));
+                    _errorString = tr("Compare failed: expected(0x%1) actual(0x%2) at address: 0x%3")
+                        .arg(static_cast<qulonglong>(static_cast<quint8>(imageBytes[bytesIndex + i])), 2, 16, QLatin1Char('0'))
+                        .arg(static_cast<qulonglong>(static_cast<quint8>(readBuf[i])), 2, 16, QLatin1Char('0'))
+                        .arg(static_cast<qulonglong>(readAddress + i), 8, 16, QLatin1Char('0'));
                     return false;
                 }
             }