[Snyk] Upgrade core-js from 3.6.5 to 3.12.1

[snyk-bot]

Snyk has created this PR to upgrade core-js from 3.6.5 to 3.12.1.

:information_source: Keep your dependencies up-to-date. This makes it easier to fix existing vulnerabilities and to more quickly identify and fix newly disclosed vulnerabilities when they affect your project.

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• The recommended version is 16 versions ahead of your current version.
• The recommended version was released 22 days ago, on 2021-05-08.

Release notes

Package name: core-js

• 3.12.1 - 2021-05-08
  • Fixed some cases of Function#toString with multiple core-js instances
  • Fixed some possible String#split polyfill problems in V8 5.1
• 3.12.0 - 2021-05-06
  • Added well-known symbol Symbol.metadata for decorators stage 2 proposal
  • Added well-known symbol Symbol.matcher for pattern matching stage 1 proposal
  • Fixed regression of V8 ~ Node 0.12 String(Symbol()) bug, #933
• 3.11.3 - 2021-05-05
  • Native promise-based APIs Promise#{ catch, finally } returns polyfilled Promise instances when it's required
• 3.11.2 - 2021-05-03
  • Added a workaround of WebKit ~ iOS 10.3 Safari Promise bug, #932
  • Promise#then of incorrect native Promise implementations with correct subclassing no longer wrapped
  • Changed the order of Promise feature detection, removed unhandled rejection tracking check in non-browser non-node platforms
• 3.11.1 - 2021-04-28
  • Made instanceof Promise and .constructor === Promise work with polyfilled Promise for all native promise-based APIs
  • Added a workaround for some buggy V8 versions ~4.5 related to fixing of %TypedArray% static methods, #564
• 3.11.0 - 2021-04-22
  • Added accessible Object#hasOwnProperty stage 2 proposal
    • Object.hasOwn method
  • Fixed a possible RegExp constructor problem with multiple global core-js instances
• 3.10.2 - 2021-04-19
  • URL and URLSearchParams marked as supported from Safari 14.0
  • Polyfilled built-in constructors protected from calling on instances
• 3.10.1 - 2021-04-07
  • Prevented possible RegExp#split problems in old engines, #751, #919
  • Detection of Safari 10 string padding bug extended to some Safari-based browsers
• 3.10.0 - 2021-03-31
  • Array find from last proposal moved to the stage 2, March TC39 meeting
  • Prevented possible RegExp#exec problems in some old engines, #920
  • Updated compat data mapping:
    • NodeJS up to 16.0
    • Electron up to 13.0
    • Samsung Internet up to 14.0
    • Opera Android up to 62
    • The rest automatically
• 3.9.1 - 2021-02-28
  • Added a workaround for Chrome 38-40 bug which does not allow to inherit symbols (incl. well-known) from DOM collections prototypes to instances, #37
  • Used NumericRangeIterator as toStringTag instead of RangeIterator in { Number, BigInt }.range iterator, per this PR
  • TypedArray constructors marked as supported from Safari 14.0
  • Updated compat data mapping for iOS Safari and Opera for Android
• 3.9.0 - 2021-02-18
• 3.8.3 - 2021-01-19
• 3.8.2 - 2021-01-03
• 3.8.1 - 2020-12-06
• 3.8.0 - 2020-11-25
• 3.7.0 - 2020-11-06
• 3.6.5 - 2020-04-09

from core-js GitHub release notes

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