NPM audit fix - updated dependencies and bumped version

Author: jotamorais

package-lock.json

@@ -1,7 +1,7 @@
 {
   "name": "routing-controllers",
   "private": false,
-  "version": "0.8.1-alpha.1",
+  "version": "0.8.1-alpha.2",
   "description": "Create structured, declarative and beautifully organized class-based controllers with heavy decorators usage for Express / Koa using TypeScript.",
   "license": "MIT",
   "readmeFilename": "README.md",
@@ -70,7 +70,7 @@
     "cross-env": "6.0.0",
     "express": "^4.17.1",
     "express-session": "^1.16.2",
-    "handlebars": "^4.4.0",
+    "handlebars": "^4.7.3",
     "json": "^9.0.6",
     "kcors": "^2.2.2",
     "koa": "^2.8.2",