chore: match ng-bootstrap versions
chore: match ng-bootstrap versions

SamindaK/angular-calendar,mattlewis92/angular-calendar,mattlewis92/angular-calendar,mattlewis92/angular2-calendar,juanfc/angular-calendar,mattlewis92/angular-calendar,mattlewis92/angular2-calendar,juanfc/angular-calendar,mattlewis92/angular-calendar,SamindaK/angular-calendar,juanfc/angular-calendar,SamindaK/angular-calendar,mattlewis92/angular2-calendar,juanfc/angular-calendar