Add deprecation warning and notice to flyte-cli

[eapolinario]

Signed-off-by: Eduardo Apolinario [email protected]

TL;DR

Add deprecation notice to flyte-cli

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

This is how executions of flyte-cli look like now:

❯ flyte-cli setup-config --host="localhost:30081" --insecure
...
DeprecationWarning: The command flyte-cli is deprecated.

################################################################################################################################
# flyte-cli is being deprecated in favor of flytectl. More details about flytectl in https://docs.flyte.org/projects/flytectl/ #
################################################################################################################################

Welcome to Flyte CLI! Version: 0.0.0+develop

Tracking Issue

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

Follow-up issue

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

[codecov]

Codecov Report

Merging #730 (fb55e07) into master (d33fb75) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #730   +/-   ##
=======================================
  Coverage   85.78%   85.79%           
=======================================
  Files         362      362           
  Lines       30007    30010    +3     
  Branches     2444     2444           
=======================================
+ Hits        25743    25746    +3     
  Misses       3621     3621           
  Partials      643      643           

Impacted Files	Coverage Δ
flytekit/clis/flyte_cli/main.py	47.38% <100.00%> (+0.13%)	⬆️

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