Bump dotenv-cli from 7.4.2 to 8.0.0 in /webserver

Bumps [dotenv-cli](https://github.com/entropitor/dotenv-cli) from 7.4.2 to 8.0.0.
- [Release notes](https://github.com/entropitor/dotenv-cli/releases)
- [Commits](entropitor/dotenv-cli@v7.4.2...v8.0.0)

---
updated-dependencies:
- dependency-name: dotenv-cli
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

webserver/package.json

@@ -59,7 +59,7 @@
     "@types/mdast": "^4.0.4",
     "@types/n3": "^1.21.1",
     "@types/node": "^22.10.10",
-    "dotenv-cli": "^7.4.2",
+    "dotenv-cli": "^8.0.0",
     "vitest": "^2.1.1"
   }
 }