Add debugpy auto start with `FLYTE_INTERNAL_START_DEBUGPY`

[ggydush]

TL;DR

Adds debugpy auto-start adapter to setup_execution so follow-up registration is not required to debug.

Type

• [ ] Bug Fix
• [x] Feature
• [ ] Plugin

Are all requirements met?

• [ ] Code completed
• [ ] Smoke tested
• [ ] Unit tests added
• [ ] Code documentation added
• [ ] Any pending items have an associated Issue

Complete description

How did you fix the bug, make the feature etc. Link to any design docs etc

Tracking Issue

https://github.com/flyteorg/flyte/issues/

Follow-up issue

NA OR https://github.com/flyteorg/flyte/issues/

[codecov[bot]]

Codecov Report

Merging #1591 (2c76bd9) into master (36fc151) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1591   +/-   ##
=======================================
  Coverage   70.15%   70.15%           
=======================================
  Files         328      328           
  Lines       30029    30029           
  Branches     5423     5423           
=======================================
  Hits        21068    21068           
  Misses       8434     8434           
  Partials      527      527           

Impacted Files	Coverage Δ
setup.py	0.00% <ø> (ø)