[CI] Bump Tuist to 4.206.0 - #70

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, jdx/mise-action@v2. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

'appendInterpolation' is deprecated: Localized string interpolation produces an unlocalized, debug description for this type of value. Use a type supported by LocalizedStringKey.StringInterpolation or initialize a LocalizedStringResource instead with an interpolated value that conforms to CustomLocalizedStringResourceConvertible.