⬆️ Update dependencies (#248)

- remove @types/dotenv
- dotenv 8.1.0 > 8.2.0
- @types/connect-mongo 0.0.43 > 3.0.0
- concurrently 4.1.2 > 5.0.0

Thanks!

package.json

@@ -33,7 +33,7 @@
         "body-parser": "^1.19.0",
         "compression": "^1.7.4",
         "connect-mongo": "^3.0.0",
-        "dotenv": "^8.1.0",
+        "dotenv": "^8.2.0",
         "errorhandler": "^1.5.1",
         "express": "^4.17.1",
         "express-flash": "0.0.2",
@@ -60,8 +60,7 @@
         "@types/chai": "^4.2.3",
         "@types/compression": "^1.0.1",
         "@types/concurrently": "^4.1.0",
-        "@types/connect-mongo": "^0.0.43",
-        "@types/dotenv": "^6.1.1",
+        "@types/connect-mongo": "^3.0.0",
         "@types/errorhandler": "^0.0.32",
         "@types/eslint": "^6.1.1",
         "@types/express": "^4.17.1",
@@ -87,7 +86,7 @@
         "@typescript-eslint/eslint-plugin": "^2.3.1",
         "@typescript-eslint/parser": "^2.3.1",
         "chai": "^4.2.0",
-        "concurrently": "^4.1.2",
+        "concurrently": "^5.0.0",
         "eslint": "^6.4.0",
         "jest": "^24.9.0",
         "node-sass": "^4.12.0",
@@ -98,4 +97,4 @@
         "ts-node": "^8.4.1",
         "typescript": "^3.6.3"
     }
-}
+}