chore(deps): update dependency typescript to v3

[renovate]

This Pull Request updates dependency typescript from ^2.8.3 to ^3.0.0

Release Notes

v3.0.1

Compare Source

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This PR has been generated by Renovate Bot.

[codecov]

Codecov Report

Merging #67 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master    #67   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           1      1           
  Lines          50     50           
  Branches       12     12           
=====================================
  Hits           50     50

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[googlebot]

So there's good news and bad news.

👍 The good news is that everyone that needs to sign a CLA (the pull request submitter and all commit authors) have done so. Everything is all good there.

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[googlebot]

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(Googler, please make sure the reason for overriding the CLA status is clearly documented in these comments.)