Add support for Python 3.14 #1747
Description
I tried compiling river 0.23.0 on Python 3.14 but it fails due to the version of PyO3 used:
│ │ cargo:rerun-if-env-changed=PYO3_USE_ABI3_FORWARD_COMPATIBILITY
│ │ --- stderr
│ │ error: the configured Python interpreter version (3.14) is newer than PyO3's maximum supported version (3.13)
│ │ = help: please check if an updated version of PyO3 is available. Current version: 0.23.5
│ │ = help: set PYO3_USE_ABI3_FORWARD_COMPATIBILITY=1 to suppress this check and build anyway using the stable ABI
Looking at PyO3 releases, version 0.27.0 is the one with official Python 3.14 support.
Would it be possible to update?