chore: Add .trunk to gitignore

[BrendanWalsh]

No description provided.

[github-actions]

Hey @BrendanWalsh 👋!
Thank you so much for contributing to our repository 🙌.
Someone from SynapseML Team will be reviewing this pull request soon.

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[github-actions]

Summary by GPT-4

This commit adds a new line to the .gitignore file. The .gitignore file specifies intentionally untracked files that Git should ignore. In this case, the line ".trunk/" is added, which means any files or directories named ".trunk" will be ignored by Git. This could be useful if there are temporary or local files in a directory named ".trunk" that should not be included in the Git repository.

Suggestions

The changes in this PR look good. The addition of .trunk/ to the .gitignore file will prevent any files in a directory named "trunk" from being tracked by Git, which can be useful if this directory is used for temporary files or other data that should not be included in the repository. No suggestions are needed.

[mhamilton723]

/azp run

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