Update dependency dotenv to v8.2.0

Author: renovate-bot

package.json

@@ -112,7 +112,7 @@
     "cross-env": "5.2.1",
     "css-hot-loader": "1.4.4",
     "css-loader": "3.1.0",
-    "dotenv": "8.0.0",
+    "dotenv": "8.2.0",
     "dts-generator": "2.1.0",
     "enzyme": "3.10.0",
     "enzyme-adapter-react-16": "1.14.0",