`cliff.toml` [remote.github] `offline = true` is ignored

### Is there an existing issue for this? - [x] I have searched the existing issues ### Description of the bug The only way to force offline is with an explicit `--offline` command line argument. `GIT_CLIFF_OFFLINE=true` via env also does not work. ### Steps To Reproduce `cliff.toml`: ``` [remote.github] owner = "" repo = "" offline = true ``` Compare `git cliff -lv` with `git cliff -lv --offline` ### Expected behavior `git cliff -lv` should be offline if `offline = true` is in `[remote.github]` Obey `GIT_CLIFF_OFFLINE=true` and `GIT_CLIFF_OFFLINE=false` accordingly ### Screenshots / Logs _No response_ ### Software information - Operating system: - Rust version: - Project version: ### Additional context _No response_