Build Python 3.13 wheels (#50531)

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## Why are these changes needed?

After #47984 we can now build the
wheels.

Note that these are not tested yet, since unfortunately conda doesn't
currently support Python 3.13 as the base environment
(conda/conda#14353) and changing everything to
run in a custom conda environment seems to require a decent amount of
changes.

## Related issue number

<!-- For example: "Closes #1234" -->

## Checks

- [ ] I've signed off every commit(by using the -s flag, i.e., `git
commit -s`) in this PR.
- [ ] I've run `scripts/format.sh` to lint the changes in this PR.
- [ ] I've included any doc changes needed for
https://docs.ray.io/en/master/.
- [ ] I've added any new APIs to the API Reference. For example, if I
added a
method in Tune, I've added it in `doc/source/tune/api/` under the
           corresponding `.rst` file.
- [ ] I've made sure the tests are passing. Note that there might be a
few flaky tests, see the recent failures at https://flakey-tests.ray.io/
- Testing Strategy
   - [ ] Unit tests
   - [ ] Release tests
   - [ ] This PR is not tested :(

.buildkite/build.rayci.yml

@@ -13,6 +13,7 @@ steps:
       - "3.10"
       - "3.11"
       - "3.12"
+      - "3.13"
     depends_on:
       - manylinux
       - forge

ci/build/build-manylinux-wheel.sh

@@ -8,7 +8,7 @@ export RAY_BUILD_ENV="manylinux_py${PYTHON}"
 
 mkdir -p .whl
 cd python
-/opt/python/"${PYTHON}"/bin/pip install -q cython==0.29.37
+/opt/python/"${PYTHON}"/bin/pip install -q cython==3.0.12 setuptools==75.8.0
 # Set the commit SHA in _version.py.
 if [[ -n "$TRAVIS_COMMIT" ]]; then
   sed -i.bak "s/{{RAY_COMMIT_SHA}}/$TRAVIS_COMMIT/g" ray/_version.py && rm ray/_version.py.bak

ci/ray_ci/builder_container.py

@@ -21,6 +21,7 @@ class PythonVersionInfo(TypedDict):
     "3.10": PythonVersionInfo(bin_path="cp310-cp310"),
     "3.11": PythonVersionInfo(bin_path="cp311-cp311"),
     "3.12": PythonVersionInfo(bin_path="cp312-cp312"),
+    "3.13": PythonVersionInfo(bin_path="cp313-cp313"),
 }
 DEFAULT_PYTHON_VERSION = "3.9"
 DEFAULT_BUILD_TYPE = "optimized"

python/build-wheel-macos.sh

@@ -10,7 +10,7 @@ DOWNLOAD_DIR=python_downloads
 
 NODE_VERSION="14"
 
-PY_MMS=("3.9" "3.10" "3.11" "3.12")
+PY_MMS=("3.9" "3.10" "3.11" "3.12" "3.13")
 
 if [[ -n "${SKIP_DEP_RES}" ]]; then
   ./ci/env/install-bazel.sh

python/build-wheel-manylinux2014.sh

@@ -10,6 +10,7 @@ PYTHON_VERSIONS=(
   "py310 cp310-cp310"
   "py311 cp311-cp311"
   "py312 cp312-cp312"
+  "py313 cp313-cp313"
 )
 
 # Add the repo folder to the safe.directory global variable to avoid the failure