Chore(deps): Update pyproject-fmt requirement from <1.8 to <1.9

Updates the requirements on [pyproject-fmt](https://github.com/tox-dev/pyproject-fmt) to permit the latest version.
- [Release notes](https://github.com/tox-dev/pyproject-fmt/releases)
- [Commits](tox-dev/pyproject-fmt@0.1.0...1.8.0)

---
updated-dependencies:
- dependency-name: pyproject-fmt
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pyproject.toml

@@ -67,7 +67,7 @@ develop = [
   "isort<6",
   "poethepoet<0.26",
   "proselint==0.13",
-  "pyproject-fmt<1.8",
+  "pyproject-fmt<1.9",
   "ruff==0.3.5",
   "validate-pyproject<0.17",
 ]