chore: add .worktrees/ to .gitignore

[EgorLu]

This is a minor change, relevant for people working with Git worktrees.
The feature requires a working directory, and .worktrees is a popular name for it (in the project root directory).

How Has This Been Tested?

Git ignores the directory after updating .gitignore properly

Merge criteria:

• The commits are squashed in a cohesive manner and have meaningful messages.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

Summary by CodeRabbit

• Chores
  • Updated .gitignore to exclude Git worktree directories from version control.

[coderabbitai]

📝 Walkthrough

Walkthrough

The change adds .worktrees/ as a new entry to .gitignore. This prevents Git worktree directories (created via git worktree add) from being tracked or committed to the repository. The modification is a single-line addition to the ignore file.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

🚥 Pre-merge checks | ✅ 2

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately and concisely describes the main change: adding .worktrees/ to .gitignore, which is exactly what the pull request does.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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[jland-redhat]

lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: EgorLu, jland-redhat

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