Build(deps): bump regex-syntax from 0.8.2 to 0.8.3

Bumps [regex-syntax](https://github.com/rust-lang/regex) from 0.8.2 to 0.8.3.
- [Release notes](https://github.com/rust-lang/regex/releases)
- [Changelog](https://github.com/rust-lang/regex/blob/master/CHANGELOG.md)
- [Commits](rust-lang/regex@regex-syntax-0.8.2...regex-syntax-0.8.3)

---
updated-dependencies:
- dependency-name: regex-syntax
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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