build(deps): bump actions/checkout from 6.1.0 to 7.0.1 - #259

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/cache/restore@0057852bfaa89a56745cba8c7296529d2fc39830, actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Cache reservation failed: You have reached your configured budget, your cache is now read only to prevent additional charges.

unused variable: `use_pty`

unused variable: `link_path`

variable does not need to be mutable

unused variable: `ctx`

unused import: `CStr`

unused import: `std::ffi::CStr`

unused import: `std::ffi::CString`

unused import: `maybe_keymap_in_obarray`

associated items `new` and `disarm` are never used