pyasn1 0.5.1

Release 0.5.1

on Python PyPI

It's a minor release.

• Added support for PyPy 3.10 and Python 3.12
• Updated RTD configuration to include a dummy index.rst redirecting to contents.html, ensuring compatibility with third-party documentation and search indexes.
• Fixed the API breakage wih decoder.decode(substrateFun=...).
  A substrateFun passed to decoder.decode() can now be either v0.4 Non-Streaming or v0.5 Streaming.
  pyasn1 will detect and handle both cases transparently.
  A substrateFun passed to one of the new streaming decoders is still expected to be v0.5 Streaming only.

All changes are noted in the CHANGELOG.