Bump async from 2.6.3 to 2.6.4

[dependabot[bot]]

Bumps async from 2.6.3 to 2.6.4.

Changelog

Sourced from async's changelog.

v2.6.4

• Fix potential prototype pollution exploit (#1828)

Commits

• c6bdaca Version 2.6.4
• 8870da9 Update built files
• 4df6754 update changelog
• 8f7f903 Fix prototype pollution vulnerability (#1828)
• See full diff in compare view

Maintainer changes

This version was pushed to npm by hargasinski, a new releaser for async since your current version.

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[mohitpavan]

the packwges are already updated.

[dependabot[bot]]

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.