downgrade python version

[yindia]

TL;DR

Downgrade python version in generate docs workflow
Output : https://github.com/evalsocket/flytectl/runs/2773384675?check_suite_focus=true

Type

• Bug Fix
• 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/lyft/flyte/issues/

Follow-up issue

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

[codecov]

Codecov Report

Merging #87 (a838536) into master (f3af555) will increase coverage by 3.29%.
The diff coverage is 68.18%.

@@            Coverage Diff             @@
##           master      #87      +/-   ##
==========================================
+ Coverage   68.15%   71.45%   +3.29%     
==========================================
  Files          93       94       +1     
  Lines        2032     2000      -32     
==========================================
+ Hits         1385     1429      +44     
+ Misses        581      504      -77     
- Partials       66       67       +1     

Flag	Coverage Δ
unittests	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
cmd/create/execution.go	73.91% <ø> (ø)
cmd/get/execution_util.go	55.35% <0.00%> (ø)
pkg/ext/execution_fetcher.go	58.82% <0.00%> (-41.18%)	⬇️
pkg/ext/fetcher.go	100.00% <ø> (ø)
pkg/ext/project_fetcher.go	42.85% <42.85%> (ø)
cmd/get/workflow.go	61.76% <66.66%> (-8.97%)	⬇️
cmd/create/execution_util.go	90.29% <100.00%> (ø)
cmd/get/execution.go	100.00% <100.00%> (+9.09%)	⬆️
cmd/get/launch_plan.go	91.11% <100.00%> (+6.79%)	⬆️
cmd/get/project.go	83.33% <100.00%> (+30.95%)	⬆️
... and 10 more

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