chore(deps): update dependency bun to v1.3.9

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
bun (source)	1.3.8 → 1.3.9

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Release Notes

oven-sh/bun (bun)

v1.3.9

Compare Source

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Configuration

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Summary by cubic

Update Bun to 1.3.9 across GitHub Actions to use the latest patch and keep CI builds consistent and up to date.

^{Written for commit 848b785. Summary will update on new commits.}

[changeset-bot]

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Latest commit: 848b785

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[greptile-apps]

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[cubic-dev-ai]

No issues found across 6 files