docs: Update Tree-sitter reference in OpenTofu and Terraform languages (#57168)

Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] The content is consistent with the [UI/UX
checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)

Release Notes:

- N/A
1d207b02e0Tom Zaspel committed on 5/19/2026, 9:57:50 PM· committed by GitHubparent7b6be29
2 files changedLine totals unavailable