Update robo test devices MAPSAND-268 (#1472)

* Change robo test device from virtual Pixel2 to Pixel3.

* Add robo test device Pixel 6 at API level 31.

* Print available firebase device model list before running robo test.

* Remove test device for API level 25 and 28.

* Add comments about virtual device.

* Add robo test device with API level 21.

* Only keep api 21, api 31 and a virtual device.

* Add api level 23 back.

* Use API level 29 for virtual pixel 2.

Author: pengdev

.circleci/config.yml

@@ -326,12 +326,18 @@ commands:
           no_output_timeout: 10m
           command: |
             if [[ -n "${GCLOUD_SERVICE_ACCOUNT_JSON}" ]]; then
+              gcloud firebase test android models list
+              ### We use following devices to run robo tests:
+              ### * 1 old API (the lower the better)
+              ### * 1 new API (the higher the better)
+              ### * 1 x86-64 emulator(Pixel2)
+              ### * API level 23 which is known to work weird sometimes
               gcloud firebase test android run --type robo \
                 --app app/build/outputs/apk/release/app-release.apk \
+                --device model=hwALE-H,version=21,locale=en,orientation=portrait \
                 --device model=harpia,version=23,locale=en,orientation=portrait \
-                --device model=blueline,version=28,locale=en,orientation=portrait \
-                --device model=Pixel2,version=30,locale=en,orientation=portrait \
-                --device model=G8142,version=25,locale=en,orientation=portrait \
+                --device model=Pixel2,version=29,locale=en,orientation=portrait \
+                --device model=oriole,version=31,locale=en,orientation=portrait \
                 --timeout 90s
             fi