fix(deps): update dependency helmet to v8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
helmet (source)	^7.0.0 -> ^8.0.0

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Release Notes

helmetjs/helmet (helmet)

### [`v8.0.0`](https://redirect.github.com/helmetjs/helmet/blob/HEAD/CHANGELOG.md#800) [Compare Source](https://redirect.github.com/helmetjs/helmet/compare/v7.2.0...v8.0.0) ##### Changed - **Breaking:** `Strict-Transport-Security` now has a max-age of 365 days, up from 180 - **Breaking:** `Content-Security-Policy` middleware now throws an error if a directive should have quotes but does not, such as `self` instead of `'self'`. See [#​454](https://redirect.github.com/helmetjs/helmet/issues/454) - **Breaking:** `Content-Security-Policy`'s `getDefaultDirectives` now returns a deep copy. This only affects users who were mutating the result - **Breaking:** `Strict-Transport-Security` now throws an error when "includeSubDomains" option is misspelled. This was previously a warning ##### Removed - **Breaking:** Drop support for Node 16 and 17. Node 18+ is now required

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