add -o short option for argo cli get command

[vivek-26]

Closes #3090

Adds short option to -o flag to argo get command:

$: ./argo get hello-world-44bzs -o short
STEP                  TEMPLATE  PODNAME            DURATION  MESSAGE            NODENAME
 ◷ hello-world-44bzs  whalesay  hello-world-44bzs  1m        ContainerCreating  microk8s-vm

[codecov]

Codecov Report

Merging #5533 (e1ef742) into master (eb6f3a1) will decrease coverage by 0.02%.
The diff coverage is 41.66%.

@@            Coverage Diff             @@
##           master    #5533      +/-   ##
==========================================
- Coverage   47.03%   47.01%   -0.03%     
==========================================
  Files         240      240              
  Lines       15011    15020       +9     
==========================================
+ Hits         7060     7061       +1     
- Misses       7052     7057       +5     
- Partials      899      902       +3     

Impacted Files	Coverage Δ
cmd/argo/commands/get.go	56.95% <41.66%> (-0.38%)	⬇️
workflow/metrics/server.go	12.50% <0.00%> (-4.17%)	⬇️
workflow/controller/operator.go	70.91% <0.00%> (-0.06%)	⬇️

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[alexec]

@sarabala1979 bump

[sarabala1979]

LGTM