Jumpssh

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- [Bug] :issue:`152`: Remove pkg_info.json file and replace it with python file to avoid access issue at runtime
- [Improvement] add python 3.9 validation

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- [Bug] :issue:`109`: Fix automated session closure handled by python garbage collection
- [Bug] :issue:`120`: Fix get_remote_session not respecting 'timeout' parameter
- [Bug] :issue:`139`: Fix run_cmd raising AuthenticationException if no agent is running
- [Improvement][Tests]: use flaky package to automatically rerun flaky tests

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- [Improvement]: remove pytest-runner from setup_requires as this is deprecated for security reasons, see https://github.com/pytest-dev/pytest-runner
- [Improvement]: use only fixed test dependencies in requirements_dev.txt

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- [Bug] :issue:`51`: 'get' file was failing if the remote file is binary. Thanks to :user:`pshaobow` for the report.
- [Feature]: Ability to use any parameter of `paramiko.client.SSHClient.connect` in `get_remote_session`, was forgotten during implementation of :issue:`43`.
- [Improvement]: tests migrated to docker-compose to setup docker environment

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- [Feature] :issue:`43`: Ability to use any parameter of paramiko.client.SSHClient.connect in SSHSession.

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- [Bug] :issue:`33`: Fix download of file owned by root with `SSHSession.get`
- [Bug] : Automatically open closed session when calling SSHSession.put. Thanks to :user:`fmaupas` for the fix.