Update deptry.yml

Author: tschm

.github/workflows/deptry.yml

@@ -17,11 +17,11 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: 3.12
-          cache: "pip"
+          #cache: "pip"
       - name: Install dependencies
         run: |
-          pip install -r requirements.txt
-          pip install deptry
+          pip install --no-cache-dir -r requirements.txt
+          pip install --no-cache-dir deptry
       - name: Analysis with deptry
         run: |
           deptry -vv pypfopt