Add the workmanager dependency to enable testing with Glean

app/build.gradle

@@ -479,6 +479,7 @@ dependencies {
     androidTestImplementation Deps.mockwebserver
     testImplementation Deps.mozilla_support_test
     testImplementation Deps.androidx_junit
+    testImplementation Deps.androidx_work_testing
     testImplementation (Deps.robolectric) {
         exclude group: 'org.apache.maven'
     }

buildSrc/src/main/java/Dependencies.kt

@@ -180,6 +180,7 @@ object Deps {
     const val androidx_core_ktx = "androidx.core:core-ktx:${Versions.androidx_core}"
     const val androidx_transition = "androidx.transition:transition:${Versions.androidx_transition}"
     const val androidx_work_ktx = "androidx.work:work-runtime-ktx:${Versions.androidx_work}"
+    const val androidx_work_testing = "androidx.work:work-testing:${Versions.androidx_work}"
     const val google_material = "com.google.android.material:material:${Versions.google_material}"
 
     const val autodispose = "com.uber.autodispose:autodispose:${Versions.autodispose}"