Python 3.13 support: please edit Cargo.toml & regen Cargo.lock

[0-wiz-0]

When building 0.17.11 against Python 3.13, I see:

error: failed to run custom build command for `pyo3-ffi v0.21.2`

Caused by:
  process didn't exit successfully: `/scratch/www/syncstorage-rs/work/syncstorage-rs-0.17.11/target/release/build/pyo3-ffi-13327d7f8fd29cda/build-script-build` (exit status: 1)
  --- stdout
  cargo:rerun-if-env-changed=PYO3_CROSS
  cargo:rerun-if-env-changed=PYO3_CROSS_LIB_DIR
  cargo:rerun-if-env-changed=PYO3_CROSS_PYTHON_VERSION
  cargo:rerun-if-env-changed=PYO3_CROSS_PYTHON_IMPLEMENTATION
  cargo:rerun-if-env-changed=PYO3_PRINT_CONFIG
  cargo:rerun-if-env-changed=PYO3_USE_ABI3_FORWARD_COMPATIBILITY

  --- stderr
  error: the configured Python interpreter version (3.13) is newer than PyO3's maximum supported version (3.12)
  = help: please check if an updated version of PyO3 is available. Current version: 0.21.2
  = help: set PYO3_USE_ABI3_FORWARD_COMPATIBILITY=1 to suppress this check and build anyway using the stable ABI
warning: build failed, waiting for other jobs to finish...

Please update Cargo.lock so that a newer version of pyo3-ffi is pulled in that supports Python 3.13 (pyo3 0.22.0 introduced support for Python 3.13).

┆Issue is synchronized with this Jira Task

[pjenvey]

We pin to pyo3 0.21 in Cargo.toml so this will require bumping the version there

[jrconlin]

I may have missed this when I did the last crate update sweep. Sorry. Give me a bit to get this built out.