[EC-628] Added Crashlytics to the watchOS project

[fedemkr]

Type of change

• Bug fix
• New feature development
• Tech debt (refactoring, code cleanup, dependency upgrades, etc)
• Build/deploy pipeline (DevOps)
• Other

Objective

Add Firebase Crashlytics to the watchOS project so that we have crash reporting. AppCenter doesn't support watchOS that's why we are implementing the other one.

Code changes

• ExtensionDelegate: Added this extension delegate to configure the firebase app
• bitwardenApp: Referenced the delegate by using WKExtensionDelegateAdaptor
• GoogleService-Info.plist: Added dummy info plist for the google service to have the reference in the project. Then it will be overriden in the CI build process with the one with the actual values.
• project: Added firebase-ios-sdk package and the Crashlytics product.
• build.yml:
  • Increased the runs-on to macos-12 in order to use newer XCode that can resolve dependencies using current schema for Swift Package Manager.
  • Decrypt GoogleService-Info.plist needed for Firebase config.
  • Copy watchOS app dSYMs to the export path on a new folder (they are on a new folder so they are not uploaded to AppCenter).
  • Added step to upload these dSYMs to Firebase Crashlytics. Regarding to this I wasn't able to make it work directly using the path with some wildcards so I just use bash find to get the upload-symbols script and execute it afterwards; this should be improved, but for now it works.
• GoogleService-Info.plist.gpg: Added encrypted plist file for the Firebase config on the watchOS app

Before you submit

• Please check for formatting errors (dotnet format --verify-no-changes) (required)
• Please add unit tests where it makes sense to do so (encouraged but not required)
• If this change requires a documentation update - notify the documentation team
• If this change has particular deployment requirements - notify the DevOps team

[mimartin12]

Workflows LGTM 👍