Update babel monorepo to v7.6.4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
@babel/cli (source)	devDependencies	patch	7.6.3 -> 7.6.4
@babel/core (source)	devDependencies	patch	7.6.3 -> 7.6.4

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Release Notes

babel/babel

v7.6.4

Compare Source

👓 Spec Compliance

• babel-parser
  • #​10491 Trailing comma after rest - The final fix (@​nicolo-ribaudo)

🐛 Bug Fix

• babel-cli, babel-core, babel-generator, babel-helper-transform-fixture-test-runner
  • #​10536 Revert "chore: Upgrade source-map to 0.6.1 (#​10446)" (@​nicolo-ribaudo)

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[codecov]

Codecov Report

Merging #195 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master   #195   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           1      1           
  Lines          45     45           
  Branches        4      4           
=====================================
  Hits           45     45

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