etcd - upgrading typescript, tsd, and webpack to latest

[jaredwray]

Please check if the PR fulfills these requirements

• Followed the Contributing guidelines.
• Tests for the changes have been added (for bug fixes/features) with 100% code coverage.
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)
etcd - upgrading typescript, tsd, and webpack to latest

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (2ae6b03) to head (a241894).

Additional details and impacted files

@@            Coverage Diff            @@
##                v4     #1013   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           22        22           
  Lines         2595      2595           
  Branches       344       344           
=========================================
  Hits          2595      2595           

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