Add negative leak test for iOS · mullvad/mullvadvpn-app@45b5c0e

The following actions uses Node.js version which is deprecated and will be forced to run on node20: actions/checkout@v3. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

swiftlint 0.55.1 is already installed and up-to-date. To reinstall 0.55.1, run: brew reinstall swiftlint

Function body should span 50 lines or less excluding comments and whitespace: currently spans 54 lines (function_body_length)

Prefer using UTF-8 encoded strings when converting between `String` and `Data` (non_optional_string_data_conversion)

Prefer using UTF-8 encoded strings when converting between `String` and `Data` (non_optional_string_data_conversion)

`where` clauses are preferred over a single `if` inside a `for` (for_where)

`where` clauses are preferred over a single `if` inside a `for` (for_where)

Prefer `static` over `final class` (static_over_final_class)

Prefer `static` over `final class` (static_over_final_class)

Prefer using UTF-8 encoded strings when converting between `String` and `Data` (non_optional_string_data_conversion)

Prefer `static` over `final class` (static_over_final_class)

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