chore(deps): update angularcli monorepo (patch)

This PR contains the following updates:

Package	Type	Update	Change
@angular-devkit/build-angular	devDependencies	patch	`0.803.4` -> `0.803.6`
@angular/cli	devDependencies	patch	`8.3.4` -> `8.3.6`

Release Notes

angular/angular-cli

### [`v8.3.6`](https://togithub.com/angular/angular-cli/releases/v8.3.6) [Compare Source](https://togithub.com/angular/angular-cli/compare/v8.3.5...v8.3.6) ### Commits

@angular/cli (9.0.0-next.6)
Commit	Description	Notes
	do not warn on multiple array option use	[Closes #15630]
	add browser builder index option longhand form to schema
@angular-devkit/build-angular (0.900.0-next.6)
Commit	Description	Notes
	workaround Node.js copyFile defect on macOS	[Closes #15544]
	use manual sourcemap processing for large sourcemaps
	always use ECMA 5 optimizations with terser	[Closes #15580]

* * * * * * ### Special Thanks Charles Lyding, vikerman ### [`v8.3.5`](https://togithub.com/angular/angular-cli/releases/v8.3.5) [Compare Source](https://togithub.com/angular/angular-cli/compare/v8.3.4...v8.3.5) ### Commits

@angular/cli (8.3.5)
Commit	Description	Notes
	ensure analytics postinstall script is ES5 (#15620)

* * * * * * ### Special Thanks mgechev, Charles Lyding

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scttcper / ngx-codemirror