Bump zstd-sys to 2.0.12

Bump zstd-safe to 7.2.0

Bump zstd to 0.13.2

Bump zstd-sys to 2.0.11

Bump zstd-sys to 2.0.10

Bump zstd-safe to 7.1.0

Bump zstd to 0.13.1

Bump zstd-sys to 2.0.9

Changes since 2.0.8:
* Fix build on wasm32 using default features
* Fix allocation issues in wasm32
* Use core::ffi rather than libc type aliases
* Include zstd error methods and types in experimental bindings
* Update bindgen from 0.64 to 0.68

Bump zstd-safe to 7.0.0

Changes:
* `OutBuffer::dst` is no longer public.
* Added `OutBuffer::as_mut_ptr` and `OutBuffer::capacity`.
* Replaced libc with core::ffi for type aliases.

Bump zstd to 0.13.0

Changes:
* Bump zstd-safe to 7.0.0.
* Fix potential buffer overflow (gyscos#231).
* Some doc improvement.