fix convesion to bytes error line 65 in delegate_info.py

[Assh-codes]

Bug fix

properly convert the list, causing this error in delegate_info.py line 65:
argument 'encoded': 'list' object cannot be converted to 'PyBytes'

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[thewhaleking]

Hey @Assh-codes thanks for the PR. There's two things, however:

1. All PRs should be against the staging branch.
2. This method already expects bytes, so the issue actually lies in the Subtensor.get_delegates that sends hex to this method, rather than this method itself. You can see where this is done correctly in AsyncSubtensor.get_delegates.

Let me know if you'd like to update this PR or start a new one.

[thewhaleking]

Sorry, actually looked into it, and this is already fixed in staging: #2551