ci: fix deps

.github/workflows/integration.yml

@@ -38,5 +38,5 @@ jobs:
       - name: Run integration tests
         run: |
           set -euo pipefail
-          python -m pip install -e . ".[test]"
+          python -m pip install -e ".[test]"
           pytest -m integration

.github/workflows/unit-tests.yml

@@ -24,13 +24,18 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v6
 
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+          cache: 'pip'
+
       - name: Install project
         run: |
           set -euo pipefail
           python -m pip install --upgrade pip
           # Install project (editable) and test deps
-          python -m pip install -e .
-          python -m pip install pytest
+          python -m pip install -e ".[test]"
 
       - name: Run tests
         env: