Update dargon2_flutter_tests.yml

Author: tmthecoder

.github/workflows/dargon2_flutter_tests.yml

@@ -35,7 +35,7 @@ jobs:
           path: |
             ~/.android/avd/*
             ~/.android/adb*
-          key: avd-31
+          key: avd-31-x64
       - name: Download Flutter
         uses: subosito/flutter-action@v2
         with:
@@ -62,6 +62,7 @@ jobs:
         with:
           api-level: 31
           target: google_apis
+          arch: x86_64
           working-directory: dargon2_flutter/dargon2_flutter/example
           script: flutter test integration_test/