fix(deps): update dependency com.squareup.leakcanary:leakcanary-android-test to v3.0-alpha-6 (#566)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
|
[com.squareup.leakcanary:leakcanary-android-test](https://togithub.com/square/leakcanary)
| `3.0-alpha-5` -> `3.0-alpha-6` |
[![age](https://developer.mend.io/api/mc/badges/age/maven/com.squareup.leakcanary:leakcanary-android-test/3.0-alpha-6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/com.squareup.leakcanary:leakcanary-android-test/3.0-alpha-6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/com.squareup.leakcanary:leakcanary-android-test/3.0-alpha-5/3.0-alpha-6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/com.squareup.leakcanary:leakcanary-android-test/3.0-alpha-5/3.0-alpha-6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>square/leakcanary
(com.squareup.leakcanary:leakcanary-android-test)</summary>

###
[`v3.0-alpha-6`](https://togithub.com/square/leakcanary/releases/tag/v3.0-alpha-6)

See [Change Log](https://square.github.io/leakcanary/changelog)

</details>

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gradle/libs.versions.toml

@@ -11,7 +11,7 @@ junit = "5.10.2"
 konvert = "3.2.0"
 kotlin = "2.0.0"
 kotlinResult = "2.0.0"
-leakcanary = "3.0-alpha-5"
+leakcanary = "3.0-alpha-6"
 lifecycle = "2.8.0"
 retrofit = "2.11.0"
 richtext = "1.0.0-alpha01"