v0.14.2

zstd 0.14.2

This release adds decoder APIs that let archive libraries recover their readers
without consuming more compressed input or losing ownership on initialization
errors.

• Add stream::read::Decoder::into_inner(), which returns the underlying reader
  at its current position without additional I/O. This supports raw copying of
  compressed archive entries. Addresses #381
  and the regression reported in #380.
• Add Decoder::try_new, try_with_buffer, try_with_dictionary,
  try_with_prepared_dictionary, and try_with_ref_prefix. These return
  Result<Self, (R, io::Error)>, preserving the original reader if decoder
  initialization fails. Addresses #382.
• Return an I/O error if a streaming decoder cannot allocate its decompression
  context, instead of panicking.
• Clarify that finish_frame() can stop before the end of a frame when decoded
  output remains unread.

Decoder::finish() keeps its 0.14 behavior: it attempts to consume remaining
frame input before returning the reader. Archive libraries that need to recover
compressed bytes should use into_inner() and adopt the new try_* constructors
where they need to retain the reader after initialization failure. Existing
constructor signatures remain unchanged.

Rust 1.64 remains supported.