Bump junit from 4.12 to 4.13.1

Bumps [junit](https://github.com/junit-team/junit4) from 4.12 to 4.13.1.
- [Release notes](https://github.com/junit-team/junit4/releases)
- [Changelog](https://github.com/junit-team/junit4/blob/main/doc/ReleaseNotes4.12.md)
- [Commits](https://github.com/junit-team/junit4/compare/r4.12...r4.13.1)

Signed-off-by: dependabot[bot] <support@github.com>

uhabits-android/build.gradle.kts

@@ -109,7 +109,7 @@ dependencies {
     kapt("com.google.dagger:dagger-compiler:$daggerVersion")
     kaptAndroidTest("com.google.dagger:dagger-compiler:$daggerVersion")
     testImplementation("com.google.dagger:dagger:$daggerVersion")
-    testImplementation("junit:junit:4.12")
+    testImplementation("junit:junit:4.13.1")
     testImplementation("org.mockito:mockito-core:2.28.2")
     testImplementation("org.mockito:mockito-inline:2.8.9")
     testImplementation("com.nhaarman.mockitokotlin2:mockito-kotlin:2.2.0")