invalid secondary slot claim

## Describe the bug

- It is an error that sometimes occurs on the gossamer side while running cross-client devnet.
- I saw it when I ran 2 substrate nodes with one gossamer

```
2022-08-01T18:36:40+05:30 EROR block data processing for block with hash 0x0e4d9457cf8966f42eab11c5864a59e66cf4b6bd1b762415ee4e968e7ce27857 failed: failed to verify pre-runtime digest: invalid secondary slot claim chain_processor.go:L82 pkg=sync
```

## Log output

https://gist.github.com/kishansagathiya/16a8a0bfed1c03ba55b695de5323de92