• Update cargo-c to version 0.9.12+cargo-0.64.
• Update cbindgen to version 0.24.3.
• Update the cargo crate to version 0.64.0.
• Update the cargo-util crate to version 0.2.1.
• Update the crates-io crate to version 0.34.0.
• Update the toml_edit crate to version 0.14.4.
• Update the git2-curl crate to version 0.15.0.
• Update the kstring crate to version 2.0.0.
• Sync license of libgit2-sys crate between crate metadata and RPM package.

Note that this is the first build of cargo-c which is uses the version of libgit2 that is bundled with the libgit2-sys crate, because the version of libgit2 in Fedora is too old across all current branches. I don't expect this to cause problems, because the system /usr/bin/cargo has been built this way for a while, as well.