fix(sdk): Fix environment variable set in component yaml lost during compilation. Fixes #8884

[chensun]

Description of your changes:
Fixes #8884

Checklist:

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[connor-mccarthy]

/lgtm

Thanks, @chensun!

Maybe add a release note for the rare case that a user notices a behavior change and want to trace it. Feel free to merge as-is if you prefer.

[chensun]

/lgtm

Thanks, @chensun!

Maybe add a release note for the rare case that a user notices a behavior change and want to trace it. Feel free to merge as-is if you prefer.

Good call. I should have remembered doing that. Fixed.

[connor-mccarthy]

/lgtm
/approve

[connor-mccarthy]

/lgtm
/approve

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: connor-mccarthy

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[google-oss-prow]

@chensun: 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-sdk-execution-tests	e684560	link	true	/test kubeflow-pipelines-sdk-execution-tests

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[chensun]

kubeflow-pipelines-sdk-execution-tests failure is unrelated to the change and tracked by #8845 and #8846 (pending release)