Update dependency com.android.tools.build:gradle to v8.6.0 (#944)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [com.android.tools.build:gradle](http://tools.android.com/)
([source](https://android.googlesource.com/platform/tools/base)) |
dependencies | minor | `8.5.2` -> `8.6.0` |

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gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 agp = "8.5.2"
-agpAlpha = "8.5.2"
+agpAlpha = "8.6.0"
 anvil = "2.5.0-beta11"
 bugsnagGradle = "8.1.0"
 circuit = "0.23.1"