fix: Replaced deprecated 'summary' attribute with recommended 'caption' element (#19934)

[jasonjyu]

Replaced deprecated 'summary' attribute with recommended 'caption' element to address issue #19934.

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[jasonjyu]

@wing328, would you have some time to review my PR for issue #19934? Thanks.

[jasonjyu]

@wing328, would you prefer I create a new branch?

[wing328]

cc
@bbdouglas (2017/07) @sreeshas (2017/08) @jfiala (2017/08) @lukoyanov (2017/09) @cbornet (2017/09) @jeff9finger (2018/01) @karismann (2019/03) @Zomzog (2019/04) @lwlee2608 (2019/10) @martin-mfg (2023/08)

[wing328]

@jasonjyu thanks for the PR

let's give it a try