Make R2 download non-fatal to test rest of pipeline

Author: firecow

.github/workflows/release.yml

@@ -48,6 +48,7 @@ jobs:
         run: sudo apt-get update && sudo apt-get install -y rclone
 
       - name: Download existing ppa from R2
+        continue-on-error: true
         run: rclone copy r2:${R2_BUCKET}/ ppa/
         env:
           RCLONE_CONFIG_R2_TYPE: s3