Build(deps): Bump libv8 from 7.3.492.27.1 to 8.4.255.0 (PR #10285)

Bumps libv8 from 7.3.492.27.1 to 8.4.255.0.

Release notes

Sourced from libv8's releases.

v8.4.255.0

After long last, a new version of v8! This release updates libv8 to v8 version 8.4.255, as well as including some more build automation to ensure smoother releases in the future.

Note: A regression introduced in 8.4.256 prevents us from using the stable 8.4 and 8.5 V8 versions without patching. A fix has been merged into 8.6, and we're waiting to see if we can uplift that to 8.5 (currently in Beta).

Changelog

Sourced from libv8's changelog.

v8.4.255.0 - 2020-07-15

  • Update upstream v8 version to 8.4.255.0

v7.3.495.0 - 2020-04-14

  • Update upstream v8 version to 7.3.495.0
  • Enable I18n support in V8
  • Drop support for Ruby 2.4 (EOL)
Commits
  • 90ea31f .org key instead of .com key
  • 62ee7fa New Travis deploy key (old one 401s)
  • e8a9669 Merge pull request #303 from nightpool/update_osx_builds
  • 07705ed Update mac OS build compilation to be faster and support more platforms
  • 2d5250a Merge pull request #301 from nightpool/8.4.255
  • ffc7bb0 bug fixes
  • 818cc4e Revamp Travis configuration files for automatic deployment
  • 43902f0 Bundle ICU data files
  • c46dcba Use last good version before build error
  • 5c7c6e3 update to 8.4.371.19
  • Additional commits viewable in compare view

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This alone would be terrible surprised all the specs passed, how could gems even install

OK, I won’t notify you again about this release, but will get in touch when a new version is available. If you’d rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version.

If you change your mind, just re-open this PR and I’ll resolve any conflicts on it.