Modify AAR existence check to skip build

Change exit code to 0 for existing AAR check.

Author: kirklandsign

.github/workflows/android-release-artifacts.yml

@@ -38,8 +38,7 @@ jobs:
           fi
           if curl -I "https://ossci-android.s3.amazonaws.com/executorch/release/${VERSION}-${FLAVOR}/executorch.aar" | grep "200 OK"; then
             echo "AAR already exists at https://ossci-android.s3.amazonaws.com/executorch/release/${VERSION}-${FLAVOR}/executorch.aar"
-            echo "Will skip build/upload"
-            exit 1
+            exit 0
           fi
 
   build-aar: