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)

[github-actions]

Backport successfully created: airflow-ctl/v0-1-test

Note: As of Merging PRs targeted for Airflow 3.X
the committer who merges the PR is responsible for backporting the PRs that are bug fixes (generally speaking) to the maintenance branches.

In matter of doubt please ask in #release-management Slack channel.

Status	Branch	Result
✅	airflow-ctl/v0-1-test