[Security] Bump acorn from 5.7.1 to 5.7.4

[dependabot-preview[bot]]

Bumps acorn from 5.7.1 to 5.7.4. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Moderate severity vulnerability that affects acorn, minimist, and svjsl There are high severity security vulnerabilities in two of ESLints dependencies: - acorn - minimist

The releases 1.8.3 and lower of svjsl (JSLib-npm) are vulnerable, but only if installed in a developer environment. A patch has been released (v1.8.4) which fixes these vulnerabilities.

Identifiers:

• CVE-2020-7598
• SNYK-JS-ACORN-559469 (doesn't have a CVE identifier)

Affected versions: < 5.7.4

Commits

• 6370e90 Mark version 5.7.4
• fbc15b1 More rigorously check surrogate pairs in regexp validator
• 910e62b Mark version 5.7.3
• 3442a80 Make generate-identifier-regex capable of rewriting src/identifier.js
• 22b22f3 Raise specific errors for unterminated template literals
• 1461c7c Fix a lint error
• 0c12f63 Fix tokenizing of regexps after .of
• 832c308 Fix 404 url
• 95ca55c Mark version 5.7.2
• bba80ab Remove another fixed test from the 262 whitelist
• Additional commits viewable in compare view

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