Firebase folder and references because https://github.com/firebase/quickstart-ios/blob/fe0b2640e883054647f16083aa835bf6388d7071/scripts/add_framework_script.rb adds them. This resulted in [error: Unexpected duplicate tasks](https://github.com/firebase/firebase-ios-sdk/actions/runs/18112185533/job/51625193217?pr=15275#step:11:421). #1851
Originally posted by @ahamedjobayer081-spec in #1773 (comment)