fix(deps): update dependency helmet to v7

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
helmet (source)	^6.2.0 -> ^7.0.0

---

Release Notes

helmetjs/helmet (helmet)

v7.1.0

Compare Source

Added

• helmet.crossOriginEmbedderPolicy now supports the unsafe-none directive. See #​477

v7.0.0

Compare Source

Changed

• Breaking: Cross-Origin-Embedder-Policy middleware is now disabled by default. See #​411

Removed

• Breaking: Drop support for Node 14 and 15. Node 16+ is now required
• Breaking: Expect-CT is no longer part of Helmet. If you still need it, you can use the expect-ct package. See #​378

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.