Bump com.squareup.leakcanary:leakcanary-android (#341)

Bumps [com.squareup.leakcanary:leakcanary-android](https://github.com/square/leakcanary) from 3.0-alpha-6 to 3.0-alpha-8.
- [Release notes](https://github.com/square/leakcanary/releases)
- [Changelog](https://github.com/square/leakcanary/blob/main/docs/changelog.md)
- [Commits](https://github.com/square/leakcanary/commits)

---
updated-dependencies:
- dependency-name: com.squareup.leakcanary:leakcanary-android
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

gradle/libs.versions.toml

@@ -73,7 +73,7 @@ lint-checks = "1.3.1"
 palantir-git = "3.1.0"
 flaker = "0.1.2"
 ktor = "2.3.11"
-leakcanary = "3.0-alpha-6"
+leakcanary = "3.0-alpha-8"
 robolectric = "4.12.2"
 mockito = "5.12.0"
 kaspresso = "1.5.5"