Converting CSV to BOM: can only use comma as field separator in CSV file

version:
```
cyclonedx-linux-x64 --version
0.24.0
```
operating system and version:
```
Linux x64, SuSE SLES 15SP2
```
reproducible steps:
if you use an CSV file with other separators as `,` (comma) and run
```
cyclonedx-linux-x64 convert --input-format csv --output-format xml < small.csv > bom.xml
```
the created BOM file `bom.xml` does not include any values from the CSV file; it only contains
```
cat bom.xml

```

And btw: the last line in the BOM file is not terminated by `\n`.