[dependabot] Chore: Bump pdm-project/setup-pdm from 3 to 4

Bumps [pdm-project/setup-pdm](https://github.com/pdm-project/setup-pdm) from 3 to 4.
- [Release notes](https://github.com/pdm-project/setup-pdm/releases)
- [Commits](pdm-project/setup-pdm@v3...v4)

---
updated-dependencies:
- dependency-name: pdm-project/setup-pdm
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/release.yaml

@@ -31,7 +31,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: 'Setup PDM for build commands'
-        uses: pdm-project/setup-pdm@v4.1
+        uses: pdm-project/setup-pdm@v4
 
       - name: 'Setup Python 3.10'
         uses: actions/[email protected]
@@ -157,7 +157,7 @@ jobs:
           rm dist/*.sig*
 
       - name: 'Setup PDM for build commands'
-        uses: pdm-project/setup-pdm@v3
+        uses: pdm-project/setup-pdm@v4
 
       - name: 'Publish release to PyPI'
         uses: pypa/gh-action-pypi-publish@release/v1