Update to v3.4.2 of setup-action

[cdsap]

Why:

Closes:

What's being changed (if available, include any code snippets, screenshots, or gifs):

The SHA reference to gradle/setup-action is updated to point to the v3.4.2 release.

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The table contains an overview of files in the content directory that have been changed in this pull request. It's provided to make it easy to review your changes on the staging site. Please note that changes to the data directory will not show up in this table.

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Content directory changes

You may find it useful to copy this table into the pull request summary. There you can edit it to share links to important articles or changes and to give a high-level overview of how the changes in your pull request support the overall goals of the pull request.

Source	Preview	Production	What Changed
actions/automating-builds-and-tests/building-and-testing-java-with-gradle.md	fpt ghec ghes@ 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.13 3.12 3.11 3.10
actions/publishing-packages/publishing-java-packages-with-gradle.md	fpt ghec ghes@ 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.13 3.12 3.11 3.10

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fpt: Free, Pro, Team ghec: GitHub Enterprise Cloud ghes: GitHub Enterprise Server

[nguyenalex836]

@cdsap Thanks so much for opening a PR! I'll get this triaged for review ✨

[sunbrye]

@cdsap Thank you so much for making these updates 💛 I'm going to update the branch and get this merged!

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