Bump handlebars from 4.1.2 to 4.2.1

Bumps [handlebars](https://github.com/wycats/handlebars.js) from 4.1.2 to 4.2.1.
- [Release notes](https://github.com/wycats/handlebars.js/releases)
- [Changelog](https://github.com/wycats/handlebars.js/blob/v4.2.1/release-notes.md)
- [Commits](https://github.com/wycats/handlebars.js/compare/v4.1.2...v4.2.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package-lock.json

@@ -3616,9 +3616,9 @@
       }
     },
     "handlebars": {
-      "version": "4.1.2",
-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.1.2.tgz",
-      "integrity": "sha512-nvfrjqvt9xQ8Z/w0ijewdD/vvWDTOweBUm96NTr66Wfvo1mJenBLwcYmPs3TIBP5ruzYGD7Hx/DaM9RmhroGPw==",
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.2.1.tgz",
+      "integrity": "sha512-bqPIlDk06UWbVEIFoYj+LVo42WhK96J+b25l7hbFDpxrOXMphFM3fNIm+cluwg4Pk2jiLjWU5nHQY7igGE75NQ==",
       "requires": {
         "neo-async": "^2.6.0",
         "optimist": "^0.6.1",

package.json

@@ -30,7 +30,7 @@
     "animate.css": "3.7.0",
     "bootstrap": "^4.3.1",
     "glob": "^7.1.4",
-    "handlebars": "^4.1.2",
+    "handlebars": "^4.2.1",
     "http-server": "^0.11.1",
     "jquery": "^3.4.1",
     "js-yaml": "^3.13.1",