update: octocrab 0.24 -> 0.41

[0xB10C]

Next to keeping up-to-date with general GitHub API changes, this fixes #3.

[0xB10C]

I did a full backup of bitcoin-core/secp256k1 with this change (by deleting the state.json file locally) with cargo run -- --owner bitcoin-core --repo secp256k1 --destination /path/to/existing/backup --personal-access-token-file /path/to/token/file and the differences between old and new seem to be minimal.

There are now closed_by or merged_by fields that weren't there before and a new patch_url field has been added to users. Nothing that would hold me back from merging this.