sdkmanager: added installation command for build-tools-30.0.3

Author: rohit9625

.github/workflows/android.yml

@@ -54,6 +54,8 @@ jobs:
           emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
           disable-animations: true
           script: echo "Generated AVD snapshot for caching."
+      - name: Install Build Tools 30.0.3
+        run: yes | sdkmanager "build-tools;30.0.3"
 
       - name: Run Instrumentation tests
         if: github.event_name != 'pull_request'