Bump @angular/material from 20.2.14 to 21.1.1 in /web_embedding/ng-flutter#2784

auto-submit[bot] merged 1 commit intomainflutter/samples:mainfrom

dependabot/npm_and_yarn/web_embedding/ng-flutter/angular/material-21.1.1flutter/samples:dependabot/npm_and_yarn/web_embedding/ng-flutter/angular/material-21.1.1Copy head branch name to clipboard