Bump pdm-project/setup-pdm from 4.4 to 4.6

Bumps [pdm-project/setup-pdm](https://github.com/pdm-project/setup-pdm) from 4.4 to 4.6.
- [Release notes](https://github.com/pdm-project/setup-pdm/releases)
- [Commits](pdm-project/setup-pdm@94a8231...544d723)

---
updated-dependencies:
- dependency-name: pdm-project/setup-pdm
  dependency-version: '4.6'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/release-keyring.yaml

@@ -19,7 +19,7 @@ jobs:
           python-versions: "3.11, 3.12"
 
       - name: Setup PDM
-        uses: pdm-project/setup-pdm@94a823180e06fcde4ad29308721954a521c96ed0 # v4.4
+        uses: pdm-project/setup-pdm@544d7237314ee09c256785bd360f6b30add38b37 # v4.6
         with:
           version: "2.15.1"
           python-version-file: "src/artifacts-helper/codespaces_artifacts_helper_keyring/pyproject.toml"

.github/workflows/test-keyring.yaml

@@ -50,7 +50,7 @@ jobs:
           python-versions: "3.8, 3.9, 3.10, 3.11, 3.12, pypy-3.9, pypy-3.10"
 
       - name: Setup PDM
-        uses: pdm-project/setup-pdm@94a823180e06fcde4ad29308721954a521c96ed0 # v4.4
+        uses: pdm-project/setup-pdm@544d7237314ee09c256785bd360f6b30add38b37 # v4.6
         with:
           version: "2.15.1"
           python-version-file: "src/artifacts-helper/codespaces_artifacts_helper_keyring/pyproject.toml"