Update dependency nodemon to v2

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
nodemon (source)	devDependencies	major	1.19.3 -> 2.0.2

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Release Notes

remy/nodemon

### [`v2.0.2`](https://togithub.com/remy/nodemon/releases/v2.0.2) [Compare Source](https://togithub.com/remy/nodemon/compare/v2.0.1...v2.0.2) ##### Bug Fixes - pipe stderr correctly ([47dfb8b](https://togithub.com/remy/nodemon/commit/47dfb8b)), closes [#​1638](https://togithub.com/remy/nodemon/issues/1638) ### [`v2.0.1`](https://togithub.com/remy/nodemon/releases/v2.0.1) [Compare Source](https://togithub.com/remy/nodemon/compare/v2.0.0...v2.0.1) ##### Bug Fixes - ubuntu loop waiting for sub processes ([ed91703](https://togithub.com/remy/nodemon/commit/ed91703)), closes [#​1633](https://togithub.com/remy/nodemon/issues/1633) ### [`v2.0.0`](https://togithub.com/remy/nodemon/releases/v2.0.0) [Compare Source](https://togithub.com/remy/nodemon/compare/v1.19.4...v2.0.0) ##### Bug Fixes - wait for all subprocesses to terminate (fixes issue [#​1476](https://togithub.com/remy/nodemon/issues/1476)) ([0e6ba3c](https://togithub.com/remy/nodemon/commit/0e6ba3c)) ##### Features - update chokidar to v3 ([9a67f36](https://togithub.com/remy/nodemon/commit/9a67f36)) ##### BREAKING CHANGES - Upgrading to chokidar@3 drops support for node@4, so nodemon is doing the same, and now supports node@8+ - Chokidar upgrade means: massive CPU & RAM consumption improvements. 17x package & deps size reduction. ### [`v1.19.4`](https://togithub.com/remy/nodemon/releases/v1.19.4) [Compare Source](https://togithub.com/remy/nodemon/compare/v1.19.3...v1.19.4) ##### Bug Fixes - Replace `jade` references by `pug` ([7d6c1a8](https://togithub.com/remy/nodemon/commit/7d6c1a8)), closes [#​1595](https://togithub.com/remy/nodemon/issues/1595)

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