chore(deps): update dependency dotenv to v16.6.1

Author: renovate[bot]

package.json

@@ -105,7 +105,7 @@
     "@bufbuild/protoc-gen-es": "2.5.1",
     "@playwright/test": "1.54.1",
     "@squonk/eslint-config": "3.0.0",
-    "dotenv": "16.5.0",
+    "dotenv": "16.6.1",
     "eslint": "9.25.1",
     "husky": "9.1.7",
     "identity-obj-proxy": "3.0.0",