fix(package): update dotenv-safe to version 8.2.0

Closes #110

Author: greenkeeper[bot]

package.json

@@ -27,7 +27,7 @@
     "@sentry/node": "~5.0.5",
     "camelcase-keys": "~5.1.0",
     "connect-redis": "~3.4.1",
-    "dotenv-safe": "~6.1.0",
+    "dotenv-safe": "~8.2.0",
     "express": "~4.16.4",
     "http-status": "~1.3.2",
     "joi": "~14.3.1",