Fix acceptance of licenses on Travis

Author: monkbroc

.travis.yml

@@ -33,6 +33,10 @@ android:
     - 'android-sdk-license-.+'
     - 'google-gdk-license-.+'
 
+before_install:
+  - yes | sdkmanager "platforms;android-30"
+  - yes | sdkmanager "build-tools;29.0.2"
+
 script:
   - ./gradlew :cloudsdk:assembleDebug :cloudsdk:testDebugUnitTest :cloudsdk:jacocoTestReport 
   - ./gradlew :cloudsdk:coveralls