Fix promote ios error

[ztefanie]

The pipeline is failing for the ios promotion jobs in ~50% of the runs, with this error
Cannot update languages - could not find an editable version for 'IOS'

See here

Expected behaviour: The pipeline should finish without errors.

Additional context

• Maybe this is helpful: Cannot update languages - could not find an editable version for 'IOS' fastlane/fastlane#16991 (comment)
• Keep in mind that this error only occurs on the first run, if you retry it succeeds.

Should be fixed by upgrading fastlane to v2.222.0.

Related: #2698. The CI also fails there.

[steffenkleinle]

According to fastlane/fastlane#21742, this is caused by degraded apple servers. The linked PR tries to mitigate the issue, wasn't released yet. Therefore I'd say that we have to wait until a new fastlane release is done. Alternatively we could also use the master branch directly as follows:

gem 'fastlane', github: 'fastlane/fastlane', branch: 'master'

However, I think we can just restart the CI for now if it fails as this is not that time critical.

Edit: Should be fixed by upgrading fastlane to v2.222.0.