Update dependency handlebars to v4.7.6

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
handlebars (source)	dependencies	patch	4.7.5 -> 4.7.6

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Release Notes

wycats/handlebars.js

### [`v4.7.6`](https://togithub.com/wycats/handlebars.js/blob/master/release-notes.md#v476---April-3rd-2020) [Compare Source](https://togithub.com/wycats/handlebars.js/compare/v4.7.5...v4.7.6) Chore/Housekeeping: - [#​1672](https://togithub.com/wycats/handlebars.js/issues/1672) - Switch cmd parser to latest minimist ([@​dougwilson](https://api.github.com/users/dougwilson) Compatibility notes: - Restored Node.js compatibility [Commits](https://togithub.com/wycats/handlebars.js/compare/v4.7.5...v4.7.6)

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