chore: upgrade to secure version of extend

see https://nvd.nist.gov/vuln/detail/CVE-2018-16492
skonves · Feb 12, 2019 · acf0858 · acf0858
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commit acf0858
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/package-lock.json b/package-lock.json