fix(deps): update dependency netlify-headers-parser to v5 (#3709)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

npm-shrinkwrap.json

@@ -154,7 +154,7 @@
  "mock-require": "^3.0.3",
  "multiparty": "^4.2.1",
  "netlify": "^9.0.0",
- "netlify-headers-parser": "^4.0.1",
+ "netlify-headers-parser": "^5.0.0",
  "netlify-redirect-parser": "^12.0.0",
  "netlify-redirector": "^0.2.1",
  "node-fetch": "^2.6.0",