chore(deps): update dependency rollup-plugin-istanbul to v3 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rollup-plugin-istanbul	2.0.1 -> 3.0.0

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Release Notes

artberri/rollup-plugin-istanbul

### [`v3.0.0`](https://togithub.com/artberri/rollup-plugin-istanbul/blob/HEAD/CHANGELOG.md#​300-2020-12-22) [Compare Source](https://togithub.com/artberri/rollup-plugin-istanbul/compare/v2.0.1...v3.0.0) ##### Bug Fixes - Fix sourcemap support ([#​21](https://togithub.com/artberri/rollup-plugin-istanbul/issues/21)) ##### BREAKING CHANGES - Node.js 10 is now required - The defaults for `autoWrap`, `preserveComments`, `esModules` and `produceSourceMap` are now true. - Rollup minimum version is now 1.20.0 - `istanbul-lib-instrument` version 4.0.3 is now used

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Configuration

📅 Schedule: Branch creation - "after 10pm every weekday,every weekend,before 5am every weekday" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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