chore(deps): bump pest_derive from 2.5.4 to 2.5.5 (#16373)

Bumps [pest_derive](https://github.com/pest-parser/pest) from 2.5.4 to 2.5.5.
- [Release notes](https://github.com/pest-parser/pest/releases)
- [Commits](pest-parser/pest@v2.5.4...v2.5.5)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

lib/datadog/search-syntax/Cargo.toml

@@ -10,5 +10,5 @@ license = "MPL-2.0"
 itertools = { version = "0.10.5", default-features = false }
 once_cell = { version = "1.17", default-features = false, features = ["std"] }
 pest = { version = "2.5.5", default-features = false, features = ["std"] }
-pest_derive = { version = "2.5.4", default-features = false, features = ["std"] }
+pest_derive = { version = "2.5.5", default-features = false, features = ["std"] }
 regex = { version = "1", default-features = false, features = ["std"] }