chore(deps): Bump smallvec from 1.14.0 to 1.15.0

Bumps [smallvec](https://github.com/servo/rust-smallvec) from 1.14.0 to 1.15.0.
- [Release notes](https://github.com/servo/rust-smallvec/releases)
- [Commits](servo/rust-smallvec@v1.14.0...v1.15.0)

---
updated-dependencies:
- dependency-name: smallvec
  dependency-version: 1.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]