chore: temporarily disable struct accessor tests

[shobsi]

This is to unblock PRs until the real issue is identified and fixed in b/362738764.

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Fixes #<issue_number_goes_here> 🦕

[tswast]

doctest isn't a required check, so this feels unnecessary. Plus the doctest: +SKIP will end up in the API reference docs, which isn't ideal.

My understanding with conversation with @Genesis929 is that we can alphabetize the struct subfields in the sample data we create as a better temporary fix.

[tswast]

Closing in favor of #953 (review)