chore(deps): update dependency xamarin.androidx.core to v1.12.0.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
Xamarin.AndroidX.Core (source)	1.12.0.1 -> 1.12.0.3
Xamarin.AndroidX.Core (source)	1.7.0.2 -> 1.12.0.3

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