chore(deps): update pdm-project/setup-pdm action to v4

Author: renovate[bot]

.github/workflows/ci.yml

@@ -29,7 +29,7 @@ jobs:
       run: git fetch --depth=1 --tags
 
     - name: Set up PDM
-      uses: pdm-project/setup-pdm@v3
+      uses: pdm-project/setup-pdm@v4
       with:
         python-version: "3.8"
 
@@ -77,7 +77,7 @@ jobs:
       uses: actions/checkout@v4
 
     - name: Set up PDM
-      uses: pdm-project/setup-pdm@v3
+      uses: pdm-project/setup-pdm@v4
       with:
         python-version: ${{ matrix.python-version }}
         allow-python-prereleases: true

.github/workflows/release.yml

@@ -21,7 +21,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: pdm-project/setup-pdm@v3
+      - uses: pdm-project/setup-pdm@v4
 
       - name: Publish package distributions to PyPI
         run: pdm publish