chore(deps): update dependency babel-preset-power-assert to v3 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
babel-preset-power-assert	devDependencies	major	2.0.0 -> 3.0.0

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Release Notes

power-assert-js/babel-preset-power-assert

### [`v3.0.0`](https://togithub.com/power-assert-js/babel-preset-power-assert/blob/master/CHANGELOG.md#​300httpsgithubcompower-assert-jsbabel-preset-power-assertreleasestagv300-2018-08-30) [Compare Source](https://togithub.com/power-assert-js/babel-preset-power-assert/compare/v2.0.0...v3.0.0) ##### Features - Babel7 support ##### Breaking Changes - Babel7 is incompatible with Babel6. For Babel6, you need to use [the 2.x release of babel-preset-power-assert](https://togithub.com/power-assert-js/babel-preset-power-assert/tree/v2.0.0). $ npm install --save-dev babel-preset-power-assert@2.0.0

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