feat(firebase_admob): integrate Admob with new core

[kroikie]

Depend on firebase_core v 0.5.0 and migrate plugin to use firebase_core native SDK versioning features;

Firebase iOS SDK versions are now locked to use the same version defined in firebase_core.
Firebase Android SDK versions are now using the Firebase Bill of Materials (BoM) to specify individual SDK versions. BoM version is also sourced from firebase_core.

Fixes #3209

[Ehesp]

Is it worth adding in #3236 as part of this too?

[kroikie]

Seems urgent enough to add in.

[Salakar]

Re: #3236 I don't think there's anything we need to do on the FlutterFire side other than make sure we're using the latest sdk, source: invertase/react-native-firebase#4107

[kroikie]

Makes sense, we will have to update this dependency outside of setting Firebase Core since Firebase/AdMob is no longer updated and Firebase docs recommends direct dependency.

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[Salakar]

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[github-actions]

Deploy preview for 487e748:

https://flutter-firebase-docs--pr3347-admob-new-core-tqm9oaqc.web.app

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[Salakar]

Both Android & iOS should be working now, have ran both locally:

[john990]

Makes sense, we will have to update this dependency outside of setting Firebase Core since Firebase/AdMob is no longer updated and Firebase docs recommends direct dependency.

Why Firebase/AdMob is no longer updated?!!!
Developing flutter applications can’t make money. Why do we use flutter?

[Salakar]

@john990 Firebase/AdMob podspec is just a shell to bring in the underlying google ads pods, what's being said here is that we'd in future rely on the google ads pods directly instead. Only the shell podspec is what's not being updated

[ghost]

When is the release planned for this PR? @Salakar

[ianpark]

I think this update is still in prerelease. When is it going to be published?

https://pub.dev/packages/firebase_admob

[john990]

@john990 Firebase/AdMob podspec is just a shell to bring in the underlying google ads pods, what's being said here is that we'd in future rely on the google ads pods directly instead. Only the shell podspec is what's not being updated

Wow, this is really good news, is it implemented entirely in Flutter? Is there an approximate release date? look forward to!