Bump test-butler-library from 2.1.1 to 2.2.1 (#788)

Bumps [test-butler-library](https://github.com/linkedin/test-butler) from 2.1.1 to 2.2.1.
- [Release notes](https://github.com/linkedin/test-butler/releases)
- [Changelog](https://github.com/linkedin/test-butler/blob/master/CHANGELOG.md)
- [Commits](https://github.com/linkedin/test-butler/compare/2.1.1...2.2.1)

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

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

uhabits-android/build.gradle.kts

@@ -77,7 +77,7 @@ dependencies {
     androidTestImplementation("androidx.test.espresso:espresso-core:$espressoVersion")
     androidTestImplementation("com.google.dagger:dagger:$daggerVersion")
     androidTestImplementation("com.linkedin.dexmaker:dexmaker-mockito:2.28.0")
-    androidTestImplementation("com.linkedin.testbutler:test-butler-library:2.1.1")
+    androidTestImplementation("com.linkedin.testbutler:test-butler-library:2.2.1")
     androidTestImplementation("io.ktor:ktor-client-mock:$ktorVersion")
     androidTestImplementation("io.ktor:ktor-jackson:$ktorVersion")
     androidTestImplementation("androidx.annotation:annotation:1.1.0")