Update dependency dotenv to v16

Author: renovate[bot]

package.json

@@ -51,7 +51,7 @@
         "compression": "1.7.4",
         "cors": "2.8.5",
         "dayjs": "1.10.7",
-        "dotenv": "10.0.0",
+        "dotenv": "16.4.7",
         "feathers-authentication-hooks": "1.0.2",
         "feathers-mongodb": "6.4.1",
         "feathers-mongodb-fuzzy-search": "2.0.1",