chore: dependency version up

[flexboni]

css 코드 복사

Description

Bumped the version of the intl package and updated SDK dependencies.

Related issues & PRs

No related issues or PRs.

Checklist

• [x] I have made myself familiar with the CaTeX contributing guide.
• [x] I added a PR description.
• [ ] I linked all related issues and PRs I could find (no links if there are none).
• [x] If this PR changes anything about the main math_keyboard or example package (also README etc.), I created an entry in CHANGELOG.md (## UPCOMING RELEASE if the change on its own is not worth an update).
• [x] If this PR includes a notable change in the math_keyboard package, I updated the version according to Dart's semantic versioning.
• [ ] If there is new functionality in code, I added tests covering all my additions.
• [ ] All required checks pass.