build(deps): bump http-cache-semantics and @angular/cli#6

dependabot[bot] wants to merge 1 commit intomastercodebyh/angular-app:masterfrom

dependabot/npm_and_yarn/http-cache-semantics-and-angular/cli-4.1.1codebyh/angular-app:dependabot/npm_and_yarn/http-cache-semantics-and-angular/cli-4.1.1Copy head branch name to clipboard