Bump Xamarin.AndroidX.Legacy.Support.V4 from 1.0.0.5 to 1.0.0.7

Bumps [Xamarin.AndroidX.Legacy.Support.V4](https://github.com/xamarin/AndroidX) from 1.0.0.5 to 1.0.0.7.
- [Release notes](https://github.com/xamarin/AndroidX/releases)
- [Commits](https://github.com/xamarin/AndroidX/commits

)

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