Drop support for Python 3.7

[OrangeTux]

Python 3.7 reached End of Life. Therefore, we can stop testing against this version.

We should:

1. remove Python 3.7 from our workflow.
2. raise the minimum Python supported Python version to 3.8
3. remove the dependency on asynctest That fixes Replace unmaintained test dependency 'asynctest'  #433
4. Remove Python 3.7 classifier from pyproject.toml

[MuhammadHasnain77]

I have remove the version 3.7 from workflow check it out
also can you explain the other two issue

[OrangeTux]

Among other things, pyproject.toml lists all dependencies of this project. That includes the Python version(s) that are supported by this project.

That file must be modified so minimum supported Python version is raised from Python 3.7 to Python 3.8. Read more at Poetry's documentation about dependency specification.

asynctest is a dependency required when using this project with Python 3.7. For all new Python version, this dependency is not required anymore. Since we drop support for Python 3.7, we can also remove the dependency asynctest completely. Here you can read more on restricting dependencies to specific Python version

[MuhammadHasnain77]

Thanks for describing the issue I will work on it.

[Jared-Newell-Mobility]

Additional work to date can be found in #475

[MuhammadHasnain77]

Hi
Can you see my PR did i correct all the issues?

[Jared-Newell-Mobility]

Associated PR #585

[Jared-Newell-Mobility]

PR #585 created and approved for inclusion in v1.0.0 - so closing issue