Update angularcli monorepo (patch)

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
@​angular-devkit/build-angular	devDependencies	patch	0.13.6 -> 0.13.7	source
@​angular-devkit/build-ng-packagr	devDependencies	patch	0.13.6 -> 0.13.7	source
@​angular/cli	devDependencies	patch	7.3.6 -> 7.3.7	source

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