Bump handlebars from 4.0.12 to 4.7.7 in /src/promotions-manager/promotions-manager-ui#6

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dependabot/npm_and_yarn/src/promotions-manager/promotions-manager-ui/handlebars-4.7.7QualiTorque/aws-workshop-torque:dependabot/npm_and_yarn/src/promotions-manager/promotions-manager-ui/handlebars-4.7.7Copy head branch name to clipboard