build(deps-dev): bump @babel/plugin-syntax-flow from 7.27.1 to 7.28.6

Bumps [@babel/plugin-syntax-flow](https://github.com/babel/babel/tree/HEAD/packages/babel-plugin-syntax-flow) from 7.27.1 to 7.28.6.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.28.6/packages/babel-plugin-syntax-flow)

---
updated-dependencies:
- dependency-name: "@babel/plugin-syntax-flow"
  dependency-version: 7.28.6
  dependency-type: indirect
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]