[Feature Request]: Increase the test coverage of pipieline_options.go

[mls3odp]

What would you like to happen?

There is no unit test for sdks/go/container/tools/pipieline_options.go.

Issue Priority

Priority: 3 (nice-to-have improvement)

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[mls3odp]

.take-issue

[lostluck]

I believe that this was resolved by #31732