fix(package): update dotenv to version 8.0.0

Author: greenkeeper[bot]

package.json

@@ -29,7 +29,7 @@
         "apollo-server-express": "^2.4.8",
         "body-parser": "^1.18.3",
         "cors": "^2.8.5",
-        "dotenv": "^7.0.0",
+        "dotenv": "^8.0.0",
         "express": "^4.16.4",
         "figma-js": "^1.6.1",
         "graphql": "^14.2.1",