chore(deps-dev): bump form-data from 4.0.4 to 4.0.6 in /statsig-node

Bumps [form-data](https://github.com/form-data/form-data) from 4.0.4 to 4.0.6.
- [Changelog](https://github.com/form-data/form-data/blob/master/CHANGELOG.md)
- [Commits](form-data/form-data@v4.0.4...v4.0.6)

---
updated-dependencies:
- dependency-name: form-data
  dependency-version: 4.0.6
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

statsig-node/package.json

@@ -29,7 +29,7 @@
     "@types/node-fetch": "2.6.12",
     "compression": "^1.7.5",
     "express": "^4.21.2",
-    "form-data": "4.0.4",
+    "form-data": "4.0.6",
     "jest": "^29.7.0",
     "jest-extended": "^7.0.0",
     "on-headers": "1.1.0",