chore(deps): update dependency acorn [security] - abandoned

[renovate]

This PR contains the following updates:

Package	Change
acorn	6.1.1 -> 6.4.1
acorn	5.7.2 -> 5.7.4

GitHub Vulnerability Alerts

GHSA-6chw-6frg-f759

Affected versions of acorn are vulnerable to Regular Expression Denial of Service.
A regex in the form of /[x-\ud800]/u causes the parser to enter an infinite loop.
The string is not valid UTF16 which usually results in it being sanitized before reaching the parser.
If an application processes untrusted input and passes it directly to acorn,
attackers may leverage the vulnerability leading to Denial of Service.

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[commit-lint]

Chore

• deps: update dependency acorn [security] (32b67c5)

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⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

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The artifact failure details are included below:

File name: package-lock.json

ERROR: npm is known not to run on Node.js v9.0.0
You'll need to upgrade to a newer Node.js version in order to use this
version of npm. You can find the latest version at https://nodejs.org/

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Autoclosing Skipped

This PR has been flagged for autoclosing. However, it is being skipped due to the branch being already modified. Please close/delete it manually or report a bug if you think this is in error.