Fixes #269 dev container broken on M1/ARM

[paulyuk]

Description

Python-sdk dev container breaks during docker build for 2 reasons:

• it baselines on an older base image python37 which is not bullseye based
• it hardcodes amd64 architecture

The fix simply changes the base image to a newer one that is bullseye based, and second makes the architecture parameter dynamic based on your machine.

Issue reference

Please reference the issue this PR will close: #269

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests -- passes 'tox -e py39'
• Extended the documentation N/A

[codecov]

Codecov Report

Merging #270 (8355e0e) into master (aba8ed4) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #270   +/-   ##
=======================================
  Coverage   89.28%   89.28%           
=======================================
  Files          52       52           
  Lines        2155     2155           
=======================================
  Hits         1924     1924           
  Misses        231      231           

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[CodeMonkeyLeet]

LGTM