Bump handlebars from 4.0.6 to 4.7.3 in /lib/milligram-1.3.0#2

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dependabot/npm_and_yarn/lib/milligram-1.3.0/handlebars-4.7.3mi-classroom/webdev-tooling-ugly-code:dependabot/npm_and_yarn/lib/milligram-1.3.0/handlebars-4.7.3Copy head branch name to clipboard