ci: Try to enable Emulator testing with SDK 34 again

We have set the density to 240 for Emulators, and we can try
to enable it for SDK 34 again to test stability.

Signed-off-by: utzcoz <utzcoz@outlook.com>

.github/workflows/tests.yml

@@ -88,7 +88,7 @@ jobs:
       # Allow tests to continue on other devices if they fail on one device.
       fail-fast: false
       matrix:
-        api-level: [ 29 ]
+        api-level: [ 29, 34 ]
 
     steps:
       - uses: actions/checkout@v4
@@ -138,7 +138,6 @@ jobs:
           script: echo "Generated AVD snapshot for caching."
 
       - name: Run device tests
-        # See https://github.com/orgs/community/discussions/27121
         # We need to use adb shell wm density to reset device's density to ensure it can work
         # with some tests correctly.
         uses: reactivecircus/android-emulator-runner@v2