Update dependency config to v3.2.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
config (source)	dependencies	patch	3.2.0 -> 3.2.1

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Release Notes

lorenwest/node-config

### [`v3.2.1`](https://togithub.com/lorenwest/node-config/blob/master/History.md#​321--2019-07-18) [Compare Source](https://togithub.com/lorenwest/node-config/compare/f1ee76382c574b9ae1f9a27367dc3092d9a17ec0...9b73f6a26b47e5ea675ee825a34b21e59cde4805) ================== - Fixed TypeError: obj.toString is not a function - [@​leosuncin](https://togithub.com/leosuncin)

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