chore(deps): bump acorn from 5.4.1 to 5.7.4 in /modules/.audience
chore(deps): bump acorn from 5.4.1 to 5.7.4 in /modules/.audience

Bumps [acorn](https://github.com/acornjs/acorn) from 5.4.1 to 5.7.4.
- [Release notes](https://github.com/acornjs/acorn/releases)
- [Commits](https://github.com/acornjs/acorn/compare/5.4.1...5.7.4)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
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