failed to create a pull request

please check whether the GitHub token has the write permission to the repository. see https://github.com/shogo82148/actions-go-fuzz#permissions for more details.

failed to create a pull request: Head sha can't be blank, Base sha can't be blank, No commits between main and actions-go-fuzz/github.com/OffchainLabs/prysm/v6/beacon-chain/execution/FuzzForkChoiceResponse/48dce3ff2c44d973, Base ref must be a branch

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