[Security] Bump handlebars from 4.0.12 to 4.1.0 in /build

Bumps [handlebars](https://github.com/wycats/handlebars.js) from 4.0.12 to 4.1.0. **This update includes security fixes.**
- [Release notes](https://github.com/wycats/handlebars.js/releases)
- [Changelog](https://github.com/wycats/handlebars.js/blob/v4.1.0/release-notes.md)
- [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.12...v4.1.0)

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

build/package-lock.json

@@ -201,12 +201,12 @@
       "dev": true
     },
     "async": {
-      "version": "2.6.1",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.6.1.tgz",
-      "integrity": "sha512-fNEiL2+AZt6AlAw/29Cr0UDe4sRAHCpEHh54WMz+Bb7QfNcFw4h3loofyJpLeQs4Yx7yuqu/2dLgM5hKOs6HlQ==",
+      "version": "2.6.2",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.2.tgz",
+      "integrity": "sha512-H1qVYh1MYhEEFLsP97cVKqCGo7KfCyTt6uEWqsTBr9SO84oK9Uwbyd/yCW+6rKJLHksBNUVWZDAjfS+Ccx0Bbg==",
       "dev": true,
       "requires": {
-        "lodash": "^4.17.10"
+        "lodash": "^4.17.11"
       }
     },
     "async-each": {
@@ -2088,9 +2088,9 @@
       "dev": true
     },
     "handlebars": {
-      "version": "4.0.12",
-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.0.12.tgz",
-      "integrity": "sha512-RhmTekP+FZL+XNhwS1Wf+bTTZpdLougwt5pcgA1tuz6Jcx0fpH/7z0qd71RKnZHBCxIRBHfBOnio4gViPemNzA==",
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.1.0.tgz",
+      "integrity": "sha512-l2jRuU1NAWK6AW5qqcTATWQJvNPEwkM7NEKSiv/gqOsoSQbVoWyqVEY5GS+XPQ88zLNmqASRpzfdm8d79hJS+w==",
       "dev": true,
       "requires": {
         "async": "^2.5.0",

build/package.json

@@ -12,7 +12,7 @@
   "dependencies": {},
   "devDependencies": {
     "bower": "~1.8.8",
-    "handlebars": "^4.0.5",
+    "handlebars": "^4.1.0",
     "jasmine-core": "~2.5.2",
     "jasmine-sinon": "^0.4.0",
     "jsdoc": "^3.5.5",