Bump helmet from 4.6.0 to 7.0.0 (#43)

Bumps [helmet](https://github.com/helmetjs/helmet) from 4.6.0 to 7.0.0.
- [Changelog](https://github.com/helmetjs/helmet/blob/main/CHANGELOG.md)
- [Commits](helmetjs/helmet@v4.6.0...v7.0.0)

---
updated-dependencies:
- dependency-name: helmet
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -34,7 +34,7 @@
     "express": "^4.18.2",
     "express-async-wrap": "^1.0.0",
     "express-winston": "^4.0.5",
-    "helmet": "^4.1.0",
+    "helmet": "^7.0.0",
     "node-fetch": "^3.3.1",
     "node-stream-zip": "^1.11.3",
     "wildcard-match": "^5.1.0",