Bump handlebars from 4.4.5 to 4.5.1 in /build

Bumps [handlebars](https://github.com/wycats/handlebars.js) from 4.4.5 to 4.5.1.
- [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/v4.4.5...v4.5.1)

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

build/package-lock.json

@@ -2079,9 +2079,9 @@
       "dev": true
     },
     "handlebars": {
-      "version": "4.4.5",
-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.4.5.tgz",
-      "integrity": "sha512-0Ce31oWVB7YidkaTq33ZxEbN+UDxMMgThvCe8ptgQViymL5DPis9uLdTA13MiRPhgvqyxIegugrP97iK3JeBHg==",
+      "version": "4.5.1",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.5.1.tgz",
+      "integrity": "sha512-C29UoFzHe9yM61lOsIlCE5/mQVGrnIOrOq7maQl76L7tYPCgC1og0Ajt6uWnX4ZTxBPnjw+CUvawphwCfJgUnA==",
       "dev": true,
       "requires": {
         "neo-async": "^2.6.0",
@@ -4639,9 +4639,9 @@
       "dev": true
     },
     "uglify-js": {
-      "version": "3.6.4",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.6.4.tgz",
-      "integrity": "sha512-9Yc2i881pF4BPGhjteCXQNaXx1DCwm3dtOyBaG2hitHjLWOczw/ki8vD1bqyT3u6K0Ms/FpCShkmfg+FtlOfYA==",
+      "version": "3.6.8",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.6.8.tgz",
+      "integrity": "sha512-XhHJ3S3ZyMwP8kY1Gkugqx3CJh2C3O0y8NPiSxtm1tyD/pktLAkFZsFGpuNfTZddKDQ/bbDBLAd2YyA1pbi8HQ==",
       "dev": true,
       "optional": true,
       "requires": {

build/package.json

@@ -11,7 +11,7 @@
   "contributors": [],
   "dependencies": {},
   "devDependencies": {
-    "handlebars": "^4.4.5",
+    "handlebars": "^4.5.1",
     "jasmine-core": "~2.5.2",
     "jasmine-sinon": "^0.4.0",
     "jsdoc": "^3.6.3",