infra: add python 3.14 support (#3299)

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<!-- Closes #3123 -->

# Rationale for this change
Adds prebuilt support for python 3.14
Free-threaded is still not supported for now
Closes #3123 for standard python

## Are these changes tested?
test using:
`PYTHON=3.14 make test`
`PYTHON=3.14 make test-integration `

Python Build Release Candidate workflow was run:
https://github.com/afeldman1/iceberg-python/actions/runs/25267237725

## Are there any user-facing changes?
Just support of python 3.14

---------

Co-authored-by: Kevin Liu <kevinjqliu@users.noreply.github.com>

Author: afeldman1

.github/workflows/pypi-build-artifacts.yml

@@ -51,6 +51,7 @@ jobs:
             3.11
             3.12
             3.13
+            3.14
 
       - name: Install UV
         uses: astral-sh/setup-uv@5a095e7a2014a4212f075830d4f7277575a9d098 # v7.3.1
@@ -75,7 +76,7 @@ jobs:
         env:
           # Ignore 32 bit architectures
           CIBW_ARCHS: "auto64"
-          CIBW_PROJECT_REQUIRES_PYTHON: ">=3.10,<3.14"
+          CIBW_PROJECT_REQUIRES_PYTHON: ">=3.10,<3.15"
           # Keep these in sync with Python CI job `cibw-dev-env-smoke-test`
           # in .github/workflows/python-ci.yml to catch import-time regressions early.
           CIBW_BEFORE_TEST: "uv sync --directory {project} --only-group dev --no-install-project"

.github/workflows/python-ci.yml

@@ -52,7 +52,7 @@ jobs:
       max-parallel: 15
       fail-fast: true
       matrix:
-        python: ['3.10', '3.11', '3.12', '3.13']
+        python: ['3.10', '3.11', '3.12', '3.13', '3.14']
 
     steps:
     - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6

.github/workflows/svn-build-artifacts.yml

@@ -51,6 +51,7 @@ jobs:
             3.11
             3.12
             3.13
+            3.14
 
       - name: Install UV
         uses: astral-sh/setup-uv@5a095e7a2014a4212f075830d4f7277575a9d098 # v7.3.1
@@ -69,7 +70,7 @@ jobs:
         env:
           # Ignore 32 bit architectures
           CIBW_ARCHS: "auto64"
-          CIBW_PROJECT_REQUIRES_PYTHON: ">=3.10,<3.14"
+          CIBW_PROJECT_REQUIRES_PYTHON: ">=3.10,<3.15"
           CIBW_BEFORE_TEST: "uv sync --directory {project} --only-group dev --no-install-project"
           CIBW_TEST_COMMAND: "uv run --directory {project} pytest tests/avro/test_decoder.py"
           # Skip free-threaded (PEP 703) builds until we evaluate decoder_fast support

pyproject.toml

@@ -29,6 +29,7 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
 ]
 dependencies = [
     "mmh3>=4.0.0,<6.0.0",

tests/conftest.py

@@ -3029,14 +3029,22 @@ def pyarrow_table_with_promoted_types(pyarrow_schema_with_promoted_types: "pa.Sc
     )
 
 
+def pytest_configure(config: pytest.Config) -> None:
+    # Disable Ray's automatic uv environment propagation to workers.
+    # When tests are invoked via `uv run`, Ray detects the wrapper and tries
+    # to package the working directory for remote workers, which is unnecessary
+    # and problematic in local single-node test mode
+    # See https://docs.ray.io/en/latest/_modules/ray/_private/worker.html
+    os.environ["RAY_ENABLE_UV_RUN_RUNTIME_ENV"] = "0"
+
+
 @pytest.fixture(scope="session")
 def ray_session() -> Generator[Any, None, None]:
     """Fixture to manage Ray initialization and shutdown for tests."""
     import ray
 
     ray.init(
         ignore_reinit_error=True,
-        runtime_env={"working_dir": None},  # Prevent Ray from serializing the working directory to workers
     )
     yield ray
     ray.shutdown()