Update dependency ts-loader to v7

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
ts-loader	devDependencies	major	6.2.0 -> 7.0.4

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Release Notes

TypeStrong/ts-loader

### [`v7.0.4`](https://togithub.com/TypeStrong/ts-loader/blob/master/CHANGELOG.md#v704) [Compare Source](https://togithub.com/TypeStrong/ts-loader/compare/v7.0.3...v7.0.4) - [Ensure a separate webpack instance is created for different loader options](https://togithub.com/TypeStrong/ts-loader/pull/1104) - thanks [@​appzuka](https://togithub.com/appzuka) ### [`v7.0.3`](https://togithub.com/TypeStrong/ts-loader/blob/master/CHANGELOG.md#v703) [Compare Source](https://togithub.com/TypeStrong/ts-loader/compare/v7.0.2...v7.0.3) - [Ensure that JSON files are included in build module resolution](https://togithub.com/TypeStrong/ts-loader/pull/1101) - thanks [@​berickson1](https://togithub.com/berickson1) ### [`v7.0.2`](https://togithub.com/TypeStrong/ts-loader/blob/master/CHANGELOG.md#v702) [Compare Source](https://togithub.com/TypeStrong/ts-loader/compare/v7.0.1...v7.0.2) - [Make content hash consistent across machines](https://togithub.com/TypeStrong/ts-loader/pull/1085) - thanks [@​elyalvarado](https://togithub.com/elyalvarado) ### [`v7.0.1`](https://togithub.com/TypeStrong/ts-loader/blob/master/CHANGELOG.md#v701) [Compare Source](https://togithub.com/TypeStrong/ts-loader/compare/v7.0.0...v7.0.1) - [fix: watch-run](https://togithub.com/TypeStrong/ts-loader/pull/1083) - thanks [@​zn4rk](https://togithub.com/zn4rk) ### [`v7.0.0`](https://togithub.com/TypeStrong/ts-loader/blob/master/CHANGELOG.md#v700) [Compare Source](https://togithub.com/TypeStrong/ts-loader/compare/v6.2.2...v7.0.0) - [Project reference support enhancements](https://togithub.com/TypeStrong/ts-loader/pull/1076) - thanks [@​sheetalkamat](https://togithub.com/sheetalkamat)! - Following the end of life of Node 8, `ts-loader` no longer supports Node 8 **BREAKING CHANGE** ### [`v6.2.2`](https://togithub.com/TypeStrong/ts-loader/blob/master/CHANGELOG.md#v622) [Compare Source](https://togithub.com/TypeStrong/ts-loader/compare/v6.2.1...v6.2.2) - [Enable typescript 3.8.3 support when using `webpack.config.ts` files](https://togithub.com/TypeStrong/ts-loader/issues/1072) - thanks [@​vladimiry](https://togithub.com/vladimiry)! ### [`v6.2.1`](https://togithub.com/TypeStrong/ts-loader/blob/master/CHANGELOG.md#v621) [Compare Source](https://togithub.com/TypeStrong/ts-loader/compare/v6.2.0...v6.2.1) - [Output types alongside JS files, enable declaration maps](https://togithub.com/TypeStrong/ts-loader/pull/1026) - thanks [@​meyer](https://togithub.com/meyer)!

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