[NEUTRAL] Update dependency extend to ^2.0.2

[mend-for-github-com]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
extend	^2.0.1 -> ^2.0.2

By merging this PR, the issue #73 will be automatically resolved and closed:

Severity	CVSS Score	CVE
Critical	9.8	CVE-2018-16492

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Release Notes

justmoon/node-extend (extend)

v2.0.2

Compare Source

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• [Fix] Prevent merging __proto__ property (#​48)
• [Fix] deep extending should work with a non-object (#​46)
• [Docs] Switch from vb.teelaun.ch to versionbadg.es for the npm version badge SVG.
• [Docs] Add example to readme (#​34)
• [Dev Deps] update tape, eslint, @ljharb/eslint-config, covert, jscs
• [Tests] up to node v10.7, v9.11, v8.11, v7.10, v6.14, v4.9; io.js v2.3; use nvm install-latest-npm
• [Tests] Add npm run eslint
• [Tests] int is an ES3 reserved word

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