feat: update to tauri 2.12

- (MSRV bump
- Android compiler options update
- notification plugin windows7 feature deprecation

.changes/android-kotlin-compiler-options.md

@@ -0,0 +1,16 @@
+---
+"barcode-scanner": patch
+"biometric": patch
+"clipboard-manager": patch
+"deep-link": patch
+"dialog": patch
+"fs": patch
+"geolocation": patch
+"haptics": patch
+"nfc": patch
+"notification": patch
+"opener": patch
+"shell": patch
+---
+
+Migrate the Android Gradle scripts from the deprecated `kotlinOptions` DSL to `compilerOptions`, which Kotlin Gradle Plugin 2.3+ requires, to match the Tauri 2.12 Android library and templates.