Update androidx.navigation to v2.7.6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
androidx.navigation.safeargs.kotlin (source)	2.7.5 -> 2.7.6
androidx.navigation:navigation-fragment-ktx (source)	2.7.5 -> 2.7.6
androidx.navigation:navigation-ui-ktx (source)	2.7.5 -> 2.7.6

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