Make the package compatible with python 3.14t

[yabirgb]

When trying to run under python 3.14t the GIL gets activated because some sub-dependencies aren't declared compatible with free threaded builds.

Made three PRs here

• Flag the library as free threaded safe py-bip39#26
• Free thread mode support py-smoldot-light#1
• Support free threaded python py-ed25519#10

After those the project can be mark as compatible with free threaded builds by bumping the deps and probably making some adjustment.

More info:

• https://py-free-threading.github.io/porting-extensions/#__tabbed_1_5
• https://docs.python.org/3/howto/free-threading-python.html

[yabirgb]

Added the PR that remained JAMdotTech/py-ed25519#10