Bump handlebars from 4.1.0 to 4.1.2

Bumps [handlebars](https://github.com/wycats/handlebars.js) from 4.1.0 to 4.1.2.
- [Release notes](https://github.com/wycats/handlebars.js/releases)
- [Changelog](https://github.com/wycats/handlebars.js/blob/master/release-notes.md)
- [Commits](https://github.com/wycats/handlebars.js/compare/v4.1.0...v4.1.2)

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

package-lock.json

@@ -4773,12 +4773,12 @@
       "dev": true
     },
     "handlebars": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.1.0.tgz",
-      "integrity": "sha512-l2jRuU1NAWK6AW5qqcTATWQJvNPEwkM7NEKSiv/gqOsoSQbVoWyqVEY5GS+XPQ88zLNmqASRpzfdm8d79hJS+w==",
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.1.2.tgz",
+      "integrity": "sha512-nvfrjqvt9xQ8Z/w0ijewdD/vvWDTOweBUm96NTr66Wfvo1mJenBLwcYmPs3TIBP5ruzYGD7Hx/DaM9RmhroGPw==",
       "dev": true,
       "requires": {
-        "async": "^2.5.0",
+        "neo-async": "^2.6.0",
         "optimist": "^0.6.1",
         "source-map": "^0.6.1",
         "uglify-js": "^3.1.4"