[ConfigSample] Use wildcard in cache path

Author: JolandaVerhoef

.github/workflows/TestConfigurationSample.yaml

@@ -76,9 +76,7 @@ jobs:
       - name: Cache pixel2api29 system image
         uses: actions/cache@v2
         with:
-          path: |
-            ~/.android/gradle/avd/dev29_aosp_x86_Pixel_2.ini
-            ~/.android/gradle/avd/dev29_aosp_x86_Pixel_2.avd
+          path: ~/.android/gradle/avd/dev29_aosp_x86_Pixel_2.*
           key: pixel2api29
 
       - name: Run all tests