Update to python 3.8

[tinkerbot]

Description

Update to python 3.8

Why is this needed

Fixes: #

How Has This Been Tested?

How are existing users impacted? What migration steps/scripts do we need?

Checklist:

I have:

• [ ] updated the documentation and/or roadmap (if required)
• [ ] added unit or e2e tests
• [ ] provided instructions on how to upgrade

[netlify[bot]]

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[mergify[bot]]

:warning: The sha of the head commit of this PR conflicts with #169. Mergify cannot evaluate rules on this PR. :warning: