[feature] add imagePullSecrets in the pipeline level

[revit13]

What feature would you like to see?

define imagePullSecrets for KFP v2 in the pipeline level as in KFP v1:
dsl.get_pipeline_conf().set_image_pull_secrets([k8s_client.V1ObjectReference(name="secret-name")])

Related issue: #11112

What is the use case or pain point?

It is more convenient to set it once at the pipeline level rather than defining it separately for each component.

Is there a workaround currently?

Yes, imagePullSecrets can be set for each componen separately.

Also, the following workaround does not work:
When using a pipeline wrapper as in the following example I get an error: ValueError: Platform-specific features can only be set on primitive components. Found platform-specific feature set on a pipeline.

from kfp import dsl
from kfp import kubernetes

@dsl.component
def print1():
    print("hello")


@dsl.pipeline(name='test')
def test_pipeline():
    print_task = print1()

@dsl.pipeline(name='wrapper')
def wrapper_pipeline_pipeline():
    task = test_pipeline()
    kubernetes.set_image_pull_secrets(task, ['secret-name'])

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[roytman]

P.S. The option to set kubernetes.set_image_pull_policy at the pipeline level, with the flexibility to override it for individual components, can also be very useful.