Bump @angular/core from 9.1.0 to 11.0.5 in /angular-site#221

dependabot[bot] wants to merge 1 commit intomasterjdi-testing/test-site:masterfrom

dependabot/npm_and_yarn/angular-site/angular/core-11.0.5jdi-testing/test-site:dependabot/npm_and_yarn/angular-site/angular/core-11.0.5Copy head branch name to clipboard