[dist] Update dependency eventemitter3 to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
eventemitter3	dependencies	major	^3.0.0 -> ^4.0.0

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Release Notes

primus/eventemitter3

v4.0.0

Compare Source

Breaking changes

• TypeScript type definitions now require TypeScript 3.

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[codecov-io]

Codecov Report

Merging #1365 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1365   +/-   ##
=======================================
  Coverage   92.35%   92.35%           
=======================================
  Files           6        6           
  Lines         314      314           
=======================================
  Hits          290      290           
  Misses         24       24

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