Use a `PyEvent` instead of a lock to fix a race on the free-threaded build.

…r` (#136933)

Previously, if OpenSSL was not present and built-in cryptographic extension modules
were disabled, requesting `hashlib.<name>` raised `AttributeError` and an ERROR log
message with the exception traceback is emitted when importing `hashlib`. 

Now, the named constructor function will always be available but raises a `ValueError`
at runtime indicating that the algorithm is not supported. The log message has also
been reworded to be less verbose.

…own (#131537)

Co-authored-by: Peter Bierma <zintensitydev@gmail.com>

…-134724)

Lock when the thread state is detached.

Co-authored-by: Gregory P. Smith <greg@krypto.org>

…erpreters.rst`` (#137091)

Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>