chore: update gradle action to v4

[tqpcharlie]

Summary:

Summarize the changes in the pull request including how it relates to any issues (include the #number, or link them).

Closes #2033 by removing links to deprecated versions of Gradle actions, and updates Gradle actions to v4 (v5 is released, but uses Node 24, which GHA will not run by default until March 4/26).

Expected behavior:

Actions to build as expected.

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• Linked all relevant issues

[welcome]

Thanks for opening this pull request! You're awesome. We use semantic commit messages to streamline the release process. Before your pull request can be merged, you should update your pull request title to start with a semantic prefix. Examples of titles with semantic prefixes:

• fix: Bug with ssl network connections + Java module permissions.
• feat: Initial support for multiple @PrimaryKey annotations.
• docs: update RELEASE.md with new process
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[davidgamez]

LGTM! Thanks for your contribution.

[welcome]

🥳 Congrats on getting your first pull request merged!