Bug 1895149 - Add an explicit dependency on Google Play Services. r=jonalmeida

We used to get this transitively from the FCM package, but that's no
longer the case. This is needed for GoogleApiAvailability, however.

Differential Revision: https://phabricator.services.mozilla.com/D209507

mobile/android/android-components/components/lib/push-firebase/build.gradle

@@ -24,6 +24,7 @@ android {
 
 dependencies {
     implementation ComponentsDependencies.kotlin_coroutines
+    implementation ComponentsDependencies.play_services_base
 
     implementation project(':concept-push')
     implementation project(':support-base')

mobile/android/android-components/plugins/dependencies/src/main/java/DependenciesPlugin.kt

@@ -92,6 +92,8 @@ object Versions {
     object Firebase {
         const val messaging = "24.0.0"
     }
+
+    const val play_services = "18.4.0"
 }
 
 // Synchronized dependencies used by (some) modules
@@ -215,4 +217,6 @@ object ComponentsDependencies {
     const val thirdparty_androidsvg = "com.caverock:androidsvg-aar:${Versions.androidsvg}"
 
     const val firebase_messaging = "com.google.firebase:firebase-messaging:${Versions.Firebase.messaging}"
+
+    const val play_services_base = "com.google.android.gms:play-services-base:${Versions.play_services}"
 }