Temporary fix for smoke test due to b/164175567 (firebase#1892)

Author: yifanyang

smoke-tests/build.gradle

@@ -91,6 +91,12 @@ dependencies {
   androidTestImplementation "androidx.test:core:1.2.0"
   androidTestImplementation "androidx.test:runner:1.2.0"
   androidTestImplementation "junit:junit:4.12"
+
+  // TODO(yifany): Remove the temporary fix after b/164175567
+  // https://firebase.google.com/support/release-notes/android#mlkit-self-serve-fixes
+  implementation "com.google.android.gms:play-services-vision:20.1.1"
+  implementation "com.google.android.gms:play-services-vision-common:19.1.1"
+  implementation "com.google.android.gms:play-services-vision-image-label:18.0.5"
 }
 
 clean.doLast {