FEAT: Support Python 3.10

[madpah]

As per #60.

[jkowalleck]

@madpah could you change the from None in the exception raises?
reason: currrent code seams to be invalid py syntax - see https://github.com/CycloneDX/cyclonedx-python-lib/runs/4163052097?check_suite_focus=true#step:9:43

if you want to forward the original exception (which is usually the case p there is no real reason to not do it) then just add it.
example change

< except StopIteration as err:
<             raise JSONDecodeError("Expecting value", s, err.value) from None
> except StopIteration as err:
>             raise JSONDecodeError("Expecting value", s, err.value) from err

if you want to omitt the original error, then this example would work

< except StopIteration as err:
<             raise JSONDecodeError("Expecting value", s, err.value) from None
> except StopIteration as err:
>             raise JSONDecodeError("Expecting value", s, err.value)

[jkowalleck]

fix invalid py syintax as described here: #64 (comment)

[madpah]

https://github.com/CycloneDX/cyclonedx-python-lib/runs/4163052097?check_suite_focus=true#step:9:43

These errors are not from this libraries code I don't think @jkowalleck - I think they are from the JSON library itself??

[madpah]

We are suffering from python-poetry/poetry#4210 it seems - issues with Poetry and Python 3.10.

Will attempt the stated workaround.

Resolved by updating Poetry