Merge pull request #488 from pyamsoft/dependabot/gradle/com.android.billingclient-billing-8.1.0

Bump com.android.billingclient:billing from 8.0.0 to 8.1.0

Author: pyamsoft

gradle/libs.versions.toml

@@ -26,7 +26,7 @@ composeMaterial3 = "1.4.0"
 # Google
 inAppUpdate = "2.1.0"
 inAppReview = "2.0.2"
-billing = "8.0.0"
+billing = "8.1.0"
 
 # Images
 coil = "3.3.0"