Merge pull request #2557 from adaptlearning/dependabot/npm_and_yarn/handlebars-4.7.7

Bump handlebars from 4.7.3 to 4.7.7

Author: taylortom

package-lock.json

@@ -47,7 +47,7 @@
     "grunt-contrib-handlebars": "^2.0.0",
     "grunt-contrib-requirejs": "^1.0.0",
     "grunt-mocha-test": "^0.13.3",
-    "handlebars": "^4.4.0",
+    "handlebars": "^4.7.7",
     "handlebars-form-helpers": "^0.1.4",
     "hbs": "^4.0.5",
     "inquirer": "^7.3.0",