Using a non-default input path causes the action to fail

When using either v1.0.0 or v1.0.1 of the action it fails when attempting to run the command to actually generate the bom. When running the 1.0.0 version of the action I get the log output:

```
Options:
i: ./xxxxx/requirements.txt
o: ./bom.xml
Running: cyclonedx-py -i ./xxxxx/requirements.txt -o ./pythonsbom.xml
usage: cyclonedx-py [-h] (-c | -cj | -e | -p | -pip | -r) [-i FILE_PATH]
[--format {xml,json}]
[--schema-version {1.4,1.3,1.2,1.1,1.0}] [-o FILE_PATH]
[-F] [-pb] [-X]
cyclonedx-py: error: one of the arguments -c/--conda -cj/--conda-json -e/--e/--environment -p/--p/--poetry -pip/--pip -r/--r/--requirements is required
Error: Command failed: cyclonedx-py -i ./xxxxx/requirements.txt -o ./bom.xml
usage: cyclonedx-py [-h] (-c | -cj | -e | -p | -pip | -r) [-i FILE_PATH]
[--format {xml,json}]
[--schema-version {1.4,1.3,1.2,1.1,1.0}] [-o FILE_PATH]
[-F] [-pb] [-X]
cyclonedx-py: error: one of the arguments -c/--conda -cj/--conda-json -e/--e/--environment -p/--p/--poetry -pip/--pip -r/--r/--requirements is required
```

That lead me to believe that since the -r flag wasn't set it was causing the command to fail. The 1.0.1 version doesn't actually give any output when it fails.

I was able to successfully generate a bom when I instead just ran the command to generate the bom in the workflow and provided it the -r flag.

If there's anything else that I can provide that would help just let me know.