Bump com.squareup.leakcanary:leakcanary-android from 2.11 to 2.12 (#490)

Bumps [com.squareup.leakcanary:leakcanary-android](https://github.com/square/leakcanary) from 2.11 to 2.12.
- [Release notes](https://github.com/square/leakcanary/releases)
- [Changelog](https://github.com/square/leakcanary/blob/main/docs/changelog.md)
- [Commits](square/leakcanary@v2.11...v2.12)

---
updated-dependencies:
- dependency-name: com.squareup.leakcanary:leakcanary-android
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

android/build.gradle

@@ -197,7 +197,7 @@ dependencies {
     //noinspection GradleDependency
     implementation 'com.google.zxing:core:3.3.0'
 
-    debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.11'
+    debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.12'
 
     // requires minSDK 16 according to docs, not sure if it causes an issue
     withAnalyticsImplementation 'com.google.android.gms:play-services-analytics:18.0.2'