fix(sdk compiler):Fix v2 compile for exit handler Fixes #5854

[TrsNium]

Description of your changes:
If exit_handler is used, an error will occur at compile time because inputs are not set for tasks in that group(#5854)
So, set input as well as condition subgroup.

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[google-oss-robot]

Hi @TrsNium. Thanks for your PR.

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[chensun]

/ok-to-test
/lgtm

Thank you @TrsNium for the fix! I actually plan to fix this today, but you beat me :)

Can you please also update the test sample:

pipelines/sdk/python/kfp/v2/compiler_cli_tests/test_data/pipeline_with_exit_handler.py

Lines 36 to 42 in 1983037

	def my_pipeline():
	exit_task = print_op('Exit handler has worked!')
	with dsl.ExitHandler(exit_task):
	print_op('Hello World!')
	fail_op('Task failed.')

You can change the 'Hello World!' constant to be a pipeline input param. For instance:

def my_pipeline(message: str = 'Hello World!'):

  exit_task = print_op('Exit handler has worked!')

  with dsl.ExitHandler(exit_task):
    print_op(message)
    fail_op('Task failed.')

Once done, you can update the golden json by executing the file: python3 pipeline_with_exit_handler.py

[TrsNium]

@chensun
Thank you for your review!
I updated test sample, please check it!
(Thank you for the information about the test😄 .)

[chensun]

Thanks again for your contribution. This "punch the hole" thing is a tricky one. Very impressive that you were able to figure this out by yourself.

/lgtm
/approve

[google-oss-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: chensun

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