Bump datamodel-code-generator pin from 0.33.0 to 0.41.0

[harishkesavarao]

Bumps the datamodel-code-generator pin used by the task-sdk and airflow-ctl codegen uv dependency groups from 0.33.0 to 0.41.0. Both groups share a single workspace lockfile, so the pin must move together across task-sdk/pyproject.toml and airflow-ctl/pyproject.toml.

Why 0.41.0

Dependabot PR #68816 tried to bump this dependency and was closed. Regenerating the OpenAPI-derived model files with newer generator releases is not a no-op. Bisecting versions between 0.33.0 and 0.67.0 (see #69616, item 3) found:

• 0.42.2 through 0.67.0: widen JsonValue-backed fields (e.g. in AssetResponse.extra, XComResponse.value) to JsonValue | None — a schema/type change.
• 0.57.0 and later (regression compounds on top of the above): drop the = None default from nullable-but-not-required fields on ~200 fields across task-sdk/src/airflow/sdk/api/datamodels/_generated.py and airflow-ctl/src/airflowctl/api/datamodels/generated.py, turning previously-optional constructor arguments into required ones — a breaking Pydantic v2 model-contract change, even though use-default=true is set in both [tool.datamodel-codegen] configs.
• 0.41.0 is the newest version that regenerates both clients with a diff limited to the generator version-comment line, plus one benign RootModel[list] → RootModel[list[Any]] typing improvement in airflow-ctl's generated.py. No field lost its default, no type was widened.

Testing was done across several versions between 0.33.0 and 0.57.0 to identify where the change of behaviour occurs.

Testing

• uv.lock regenerated cleanly: uv lock resolves 949 packages with datamodel-code-generator v0.33.0 -> v0.41.0, no conflicts between the task-sdk and airflow-ctl codegen groups.
• Regenerated all three OpenAPI-derived client files and diffed against the pre-bump versions:
  • task-sdk/src/airflow/sdk/api/datamodels/_generated.py — version-comment line only.
  • airflow-ctl/src/airflowctl/api/datamodels/generated.py — version-comment line + RootModel[list] → RootModel[list[Any]] (2 occurrences, semantically equivalent).
  • airflow-ctl/src/airflowctl/api/datamodels/auth_generated.py — version-comment line only.
• task-sdk test suite: 2703 passed, 6 skipped (pre-existing, unrelated skips: non-Linux-only test, pyiceberg version mismatch, pendulum~=2 cases).
• airflow-ctl test suite: 267 passed.
• prek run --from-ref upstream/main --stage pre-commit: all applicable hooks passed, including mypy-task-sdk, mypy-devel-common, ruff lint/format, and Update uv.lock.

closes: #69616

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Was generative AI tooling used to co-author this PR?

• Yes — Claude Code (Sonnet 5)