Fix #5059 build error for truth package (#5078)

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## Explanation

Fix #5059 This pull request contains a gradle change, import the missing
test package to androidTestImplementation to resolve the build error.

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Co-authored-by: Adhiambo Peres <[email protected]>

app/build.gradle

@@ -210,6 +210,7 @@ dependencies {
       'androidx.test.espresso:espresso-core:3.2.0',
       'androidx.test.espresso:espresso-intents:3.1.0',
       'androidx.test.ext:junit:1.1.1',
+      'androidx.test.ext:truth:1.4.0',
       'com.github.bumptech.glide:mocks:4.11.0',
       'com.google.truth:truth:1.1.3',
       'androidx.work:work-testing:2.4.0',