Add a `@task.sensor` TaskFlow decorator

[dstandish]

Description

Implement a taskflow decorator that uses the decorated function as the poke method.

Use case/motivation

Here is a sketch of the solution that might work:

sensor_decorator.txt

Related issues

No response

Are you willing to submit a PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[mingshi-wang]

Hi @dstandish I am interested in working on this issue.

[dstandish]

Nice @mingshi-wang it's all yours

[mingshi-wang]

Hi @dstandish - It would be great if you can please help me look at my first PR to Airflow #20530. Thanks!

[dstandish]

nice @mingshi-wang will give it a look

[dstandish]

hi @mingshi-wang where do we stand with this?

[potiuk]

I just merged it last night @dstandish

[dstandish]

oh, cool 👍