Support cargo-fuzz

[taiki-e]

Closes #295

[taiki-e]

Oh, all musl binaries (0.11.2-0.12.0) are broken...

https://github.com/taiki-e/parse-changelog/actions/runs/7662945367/job/20884987788#step:6:34

error: sanitizer is incompatible with statically linked libc, disable it using `-C target-feature=-crt-static`

error[E0463]: can't find crate for `std`
  |
  = note: the `x86_64-unknown-linux-musl` target may not be installed
  = help: consider downloading the target with `rustup target add x86_64-unknown-linux-musl`
  = help: consider building the standard library from source with `cargo build -Zbuild-std`

EDIT: it is rust-fuzz/cargo-fuzz#355

[taiki-e]

Filed rust-fuzz/cargo-fuzz#365 to fix the above problem.