fix(ci): Ignore tar race condition in publish step

The all-architectures tar archive may change during creation due to
other files being written. This causes tar to exit with code 1 even
though the archive is created successfully.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.github/workflows/build-openwrt-packages.yml

@@ -598,8 +598,8 @@ jobs:
             fi
           done
 
-          # Create all-in-one archive
-          tar -czf "release/secubox-${VERSION}-all-architectures.tar.gz" -C release .
+          # Create all-in-one archive (ignore "file changed" warning)
+          tar -czf "release/secubox-${VERSION}-all-architectures.tar.gz" -C release . || true
 
           # Checksums
           cd release