The ranges.yaml currently looks like this:
```
0-250: cl-1-lighthouse-geth
250-500: cl-2-prysm-reth
500-750: cl-3-lodestar-besu
```

but the end index should be inclusive:
```
0-249: cl-1-lighthouse-geth
250-499: cl-2-prysm-reth
500-749: cl-3-lodestar-besu
```