chore: update fastlane to fix dependency vulnerability

[brenodt]

Description

This PR is meant to resolve the security warnings:

• https://github.com/qaul/qaul.net/security/dependabot/48
• https://github.com/qaul/qaul.net/security/dependabot/49

Which derive from a transitive dependency coming from Fastlane. Updating Fastlane to the latest version resolves the issue.