Configured the emulator to use 3GB of RAM and a 1024MB SD card instea…

…d of 4GB of RAM and a 2048MB SD card to reduce resource usage on CI.

* Since the emulator works well with 3GB of RAM and a 1024MB SD card on CI for running test cases for custom apps, it is better to use this configuration for the app's test cases as well.

.github/workflows/ci.yml

@@ -60,9 +60,9 @@ jobs:
           target: default
           arch: x86_64
           profile: pixel_2
-          ram-size: 4096M
+          ram-size: 3072M
           force-avd-creation: false
-          sdcard-path-or-size: 2048M
+          sdcard-path-or-size: 1024M
           cores: 4
           disable-animations: false
           heap-size: 512M
@@ -79,10 +79,10 @@ jobs:
           target: default
           arch: x86_64
           profile: pixel_2
-          ram-size: 4096M
+          ram-size: 3072M
           cores: 4
           emulator-options: -no-snapshot-save -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
-          sdcard-path-or-size: 2048M
+          sdcard-path-or-size: 1024M
           disable-animations: true
           force-avd-creation: false
           heap-size: 512M