Update android_system_bar_protection_kotlin to change alpha

[ashnohe]

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[snippet-bot]

Here is the summary of changes.

You are about to add 1 region tag.

• views/src/main/java/insets/SystemBarProtectionSnippet.kt:58, tag android_system_bar_protection_kotlin

You are about to delete 1 region tag.

• views/src/main/java/insets/SystemBarProtectionSnippet.kt:54, tag android_system_bar_protection_kotlin

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