build(deps): bump pest_derive from 2.8.1 to 2.8.6

Bumps [pest_derive](https://github.com/pest-parser/pest) from 2.8.1 to 2.8.6.
- [Release notes](https://github.com/pest-parser/pest/releases)
- [Commits](pest-parser/pest@v2.8.1...v2.8.6)

---
updated-dependencies:
- dependency-name: pest_derive
  dependency-version: 2.8.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]