chore(deps): update @angular to v7.2.4

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
@​angular/animations	dependencies	patch	7.2.3 -> 7.2.4	source
@​angular/common	dependencies	patch	7.2.3 -> 7.2.4	source
@​angular/compiler	dependencies	patch	7.2.3 -> 7.2.4	source
@​angular/core	dependencies	patch	7.2.3 -> 7.2.4	source
@​angular/forms	dependencies	patch	7.2.3 -> 7.2.4	source
@​angular/platform-browser	dependencies	patch	7.2.3 -> 7.2.4	source
@​angular/platform-browser-dynamic	dependencies	patch	7.2.3 -> 7.2.4	source
@​angular/router	dependencies	patch	7.2.3 -> 7.2.4	source

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Release Notes

angular/angular

### [`v7.2.4`](https://togithub.com/angular/angular/blob/master/CHANGELOG.md#​724httpsgithubcomangularangularcompare723724-2019-02-06) [Compare Source](https://togithub.com/angular/angular/compare/7.2.3...7.2.4) ##### Bug Fixes - **bazel:** Bazel builder resolves with require.resolve() ([#​28478](https://togithub.com/angular/angular/issues/28478)) ([d85d396](https://togithub.com/angular/angular/commit/d85d396)) - **bazel:** fix integration test for bazel-schematics ([#​28460](https://togithub.com/angular/angular/issues/28460)) ([449da8c](https://togithub.com/angular/angular/commit/449da8c)) ##### Performance Improvements - pngcrush all pngs ([#​28479](https://togithub.com/angular/angular/issues/28479)) ([1a25144](https://togithub.com/angular/angular/commit/1a25144)), closes [#​18243](https://togithub.com/angular/angular/issues/18243)

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