CLI: Improve timestamp visiblity in deploy list output

[medikoo]

Deployment timestamp serves as an identifier which is used e.g. in rollback -t <timestamp> command.
Therefore we improve its visibility in deploy list command

Changes output of deploy list from:

Into:

[codecov]

Codecov Report

Merging #10211 (83b9ac0) into master (e8c8d25) will not change coverage.
The diff coverage is 100.00%.

❗ Current head 83b9ac0 differs from pull request most recent head 8599de6. Consider uploading reports for the commit 8599de6 to get more accurate results

@@           Coverage Diff           @@
##           master   #10211   +/-   ##
=======================================
  Coverage   85.34%   85.34%           
=======================================
  Files         339      339           
  Lines       13829    13829           
=======================================
  Hits        11803    11803           
  Misses       2026     2026           

Impacted Files	Coverage Δ
lib/plugins/aws/deployList.js	71.42% <100.00%> (ø)

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[pgrzesik]

👍