chore(sdk): use click for dsl-compile command

[connor-mccarthy]

Description of your changes:
Uses click for dsl-compile command, instead of argparse. A
future PR will migrate dsl-compile to the main kfp namespace.

Notes for reviewer:

• Tests continue to pass
• The CLI signature is the same, though the help messages vary
  slightly:

Before:

usage: dsl-compile [-h] --py PY [--function FUNCTION]
                   [--pipeline-parameters PIPELINE_PARAMETERS]
                   [--namespace NAMESPACE] --output OUTPUT
                   [--disable-type-check]

optional arguments:
  -h, --help            show this help message and exit
  --py PY               local absolute path to a py file.
  --function FUNCTION   The name of the function to compile if 
there are
                        multiple.
  --pipeline-parameters PIPELINE_PARAMETERS
                        The pipeline parameters in JSON dict 
format.
  --namespace NAMESPACE
                        The namespace for the pipeline function
  --output OUTPUT       local path to the output PipelineJob 
json file.
  --disable-type-check  disable the type check, default is 
enabled.

After:

Usage: dsl-compile [OPTIONS]

  Compiles a pipeline written in a .py file.

Options:
  --py TEXT                   Local absolute path to a py file.
                              [required]
  --output TEXT               Local path to the output 
PipelineJob 
JSON
                              file.  [required]
  --function TEXT             The name of the function to 
compile if 
there
                              are multiple.
  --pipeline-parameters TEXT  The pipeline parameters in JSON 
dict 
format.
  --disable-type-check        Disable the type check. Default: 
type 
check
                              is not disabled.
  --help                      Show this message and exit.

Checklist:

• The title for your pull request (PR) should follow our
  title convention. Learn more about the pull request title convention used in this repository.

[google-oss-prow]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[connor-mccarthy]

/test all

[connor-mccarthy]

/hold -- Merge after #7558.

[connor-mccarthy]

/retest

[connor-mccarthy]

/test all

[connor-mccarthy]

/retest

[connor-mccarthy]

/retest

[google-oss-prow]

@connor-mccarthy: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
kubeflow-pipelines-samples-v2	69413f8	link	true	/test kubeflow-pipelines-samples-v2

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.

[chensun]

/lgtm
/approve

Thanks!

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: chensun

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• samples/OWNERS [chensun]
• sdk/OWNERS [chensun]

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