QCanDbcFileParser fails to parse non-ASCII characters like '°'

See the attached sample which contains a signal with the unit "°C". QCanDbcFileParser cannot read that signal and produces a warning, "Failed to find signal description in string...", and then drops the signal completely.

This occurs because QCanDbcFileParser uses QString::fromLatin1(): https://github.com/qt/qtserialbus/blob/v6.5.1/src/serialbus/qcandbcfileparser.cpp#L342